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Chesar 2 User manual

Part 2 - Reporting uses

Disclaimer The information contained in this manual does not constitute legal advice. The European Chemicals Agency does not accept any liability with regard to the contents of this document. The European Chemicals Agency is entitled to modify or revise the document at any time with or without notice and with or without cause.

Chesar 2 User manual Part 2 - Reporting uses

Reference: ECHA-12-G-07-EN Publ.date: 6 March 2013 Language: EN

© European Chemicals Agency, 2012 - 2013

Cover page © European Chemicals Agency

Reproduction is authorised provided the source is fully acknowledged in the form “Source: European Chemicals Agency, http://echa.europa.eu/”, and provided written notification is given to the ECHA Communication Unit ([email protected]).

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Document History

Version Comment Version 3.0 06/03/2013

• Adaptation to Chesar 2.2 • Additional rules for the creation/update of the life cycle tree

(section 4.1) • Transfer of Chesar life cycle information to IUCLID section 3.5

(section 4.6.3.3) • Small editorial changes

Version 2.0 24/10/2012 • Link to IUCLID expanded (Section 2) • Link to exposure scenario for communication (Section 4.4) • Possibility to assign standard phrases to labels of uses and

contributing scenarios (Sections 4.6.2, 4.6.3.1, 4.6.4) • Additional ERC (Section 4.6.3.1) • Explanations on tonnage (Section 4.6.3.1) • Additional explanations for reporting the PC (Section 4.6.2), SU

and AC (Section 4.6.3.2) Version 1.0 20/06/2012, First version

Table of Contents

1 INTRODUCTION ..................................................................................... 1

1.1 Aim of this document .................................................................................... 1 1.2 Purpose of use reporting under REACH ......................................................... 1

2 KEY PRINCIPLES FROM EXISTING GUIDANCE ....................................... 2

3 OVERVIEW OF CHESAR BOX 2 ............................................................... 3

3.1 Key terms ...................................................................................................... 3 3.2 Main differences to Chesar 1 ......................................................................... 3 3.3 Window organisation .................................................................................... 4 3.4 Overview of Box 2 functionalities .................................................................. 4 3.5 Main steps ..................................................................................................... 6

4 CREATION OF A LIFE CYCLE TREE USING CHESAR ................................. 8

4.1 Life cycle tree elements ................................................................................. 8 4.2 Link to exposure assessment (Box 3) .......................................................... 11 4.3 Link to exposure scenario in the CSR (Box 4) .............................................. 11 4.4 Link to exposure scenario for communication (Box 5) ................................ 11 4.5 Building the life cycle tree ........................................................................... 11

4.5.1 Adding a use in the life cycle tree ................................................................... 11 4.5.2 Adding a market sector ................................................................................. 12 4.5.3 Adding a contributing scenario ....................................................................... 12

4.6 Editing the elements of the life cycle tree ................................................... 13

4.6.1 Editing manufacture and import ..................................................................... 13 4.6.2 Editing market sector ................................................................................... 14 4.6.3 Editing uses ................................................................................................ 16 4.6.4 Edition of contributing scenarios .................................................................... 17

5 EXCHANGE OF CHESAR LIFE CYCLE TREE ............................................. 18

6 EXCHANGE OF CHESAR CSA BUILDING BLOCKS ................................... 20

Table of Tables

Table 1: Main steps for use description .................................................................................. 6 Table 2: Explanations on life cycle elements ........................................................................... 8

Table of Figures

Figure 1: Chesar navigation bar ............................................................................................ 4 Figure 2: Box 2 tool bar ....................................................................................................... 5 Figure 3: Contextual menu in Box 2 ...................................................................................... 5 Figure 4: Example for a Chesar life cycle tree with its different elements ................................. 10 Figure 5: Adding a use to the Chesar life cycle tree ............................................................... 12 Figure 6: Adding a contributing scenario to a use .................................................................. 13 Figure 7: Editing Manufacture/Import .................................................................................. 14 Figure 8: Assigning standard phrases to a Label ................................................................... 14 Figure 9: Selection of standard phrases ............................................................................... 15 Figure 10: Editing uses at formulation life cycle stage ............................................................ 16 Figure 11: Editing contributing scenarios for worker exposure ................................................ 18

Table of Annexes

Annex 1 - Use descriptors .................................................................................................. 21

Chesar 2 User Manual Part 2 – Reporting uses 1

1 INTRODUCTION

1.1 Aim of this document The aim of this document is to guide the assessor to:

• Understand the purpose of use-reporting within the Chemical Safety Assessment (CSA) process;

• Get familiar with the use description concept implemented in Chesar;

• Build a complete life cycle tree for a substance using Chesar;

• Import and export life cycle trees1 or CSA building blocks in order to make use of work already carried out elsewhere (e.g. in sector organisations), or to share the results of the own work with others.

1.2 Purpose of use reporting under REACH In a Chemical Safety Report (CSR) all identified uses of a substance are to be addressed, and the whole life cycle of the substance related to these uses is to be covered. Registrants are expected to:

• Provide a systematic overview of uses;

• Give the uses an intuitive name;

• Briefly describe which processes or activities are covered under a use and what the substance technically does in these processes;

• Assign use descriptors to the use.

Reporting of uses needs to be done in a systematic and structured way, in order to enable efficient, complete and transparent assessment. Structured reporting of uses also facilitates communication with the different groups of downstream users.

1 In Chesar uses can be reported in a hierarchical way, i.e. with a parent-child relationship between the different life cycle stages. The reporting of all uses is done in a so-called life cycle tree (see section 4.1).


2 KEY PRINCIPLES FROM EXISTING GUIDANCE

REACH does not include any requirements on how to describe a (identified) use. Thus in principle every registrant is free to describe his identified uses in any way he finds appropriate. Nevertheless it is legally required that the description of uses and the titles of the exposure scenarios are consistent with each other.

Identified uses are to be reported in section 3.5 of the IUCLID 5 dossier and in section 2.2 of the CSR. These brief general descriptions of uses must be consistent with the titles of i) the exposure scenarios in section 9.1 of the CSR and ii) the exposure scenarios attached to the extended safety data sheets. Chesar and IUCLID have been developed in a compatible way and it is foreseen that the uses described in Chesar can be exported to IUCLID. The IUCLID helptext may provide additional useful tips.

Chapter R.12 of ECHA’s Guidance on Information Requirements and Chemical Safety Assessment (http://guidance.echa.europa.eu/guidance_en.htm) provides the different elements of a standard use descriptor system and gives advice on how to use it.

Seven groups of actors play a role during the life cycle of the substance: manufacturers and importers of chemical substances, companies mixing and blending chemicals to produce mixtures (formulators), distributors2, industrial end-users, professional end-users and consumers3. Users of substances contained in articles (article service life) are no substance “users” under REACH and thus they don’t receive exposure scenarios. Nevertheless exposure and risks related to their activity are to be addressed in the CSA.

The waste life cycle stage is not covered in Chesar 2.2.

2 Distribution as such is not a use under REACH. However, if distribution includes substance transfers (e.g. refilling), it is a use. 3 The end-use of a substance as such or in a mixture is the last use before the substance becomes part of an article matrix, reacts on use (and hence disappears) and/or enters into waste, waste water or air emission. Uses which exclusively aim at making the substance a component in a preparation [mixture] are not end-uses but formulation.

http://guidance.echa.europa.eu/guidance_en.htm


3 OVERVIEW OF CHESAR BOX 2

3.1 Key terms The following terms with a particular meaning within Chesar are used within this Manual:

Life-cycle-stage: There are four basic steps in the life cycle of a substance: manufacture, formulation, end-use and article service life. It is assumed that manufacture and formulation always takes place at industrial sites whereas end-uses and service life can also take place in a wide dispersive manner by professionals (e.g. mobile services, administration) or consumers. Wide dispersive uses are characterised by i) multiple small scale uses correlated to the municipal structure and ii) low (professional uses) or no (consumers) risk management capacity of the single actor. Consequently, eight different types of uses are pre-defined in Chesar. These types of uses are called ”life cycle stages”. The consequences of this differentiation in terms of assessment are explained in more detail in section 2.1 of user manual 3.

Use: One or more uses can take place per life cycle stage. A use is defined by the similarity of activities or processes carried out by a defined group of actors in the market.

Exposure scenario (ES): An exposure scenario (ES) describes operational conditions (OC) and risk management measures (RMM) suitable to control the risk (ensure safe use) for a certain use. One or more processes/activities may contribute to a use, and these processes are to be characterised in terms of human exposure and environmental exposure. The characterisations at process/activity level are called contributing scenarios (CS). Each ES contains one or more CS related to environment and one or more CS related to human health (worker or consumer). Each CS contains a set of OC/RMM for the environment or for human health. If such an activity can be carried out under different conditions within the use, two or more contributing scenarios will be built for the same process or activity.

CSA building block: A CSA building block is the use (or market sector) of a substance4 with all its contributing scenarios (or uses and contributing scenarios) and the related exposure estimates, exposure scenarios and risk characterisations. A CSA building block can also consist of a single contributing scenario with its related exposure estimates, exposure scenarios and risk characterisation.

3.2 Main differences to Chesar 1 The main differences between Chesar 1 and Chesar 2 are the following:

• In Chesar 2, several environmental contributing scenarios can be created per use. This option enables reporting of different conditions for the same type of activity or process (e.g. process at small or large site) in the same exposure scenario.

• In Chesar 2, CSA building blocks, e.g. Generic Exposure Scenarios can be imported and exported.

• Chesar supports the creation of a text element for the overview on uses in CSR Chapter 9.0.1, in order to facilitate a better understanding of the use pattern of the substance covered in the CSR.

• Chesar 2.2 supports the assignment of standard phrases to use labels, so that they can be directly conveyed to the exposure scenario for communication.

4 This may be the property profile of a virtual substance, for which Chesar then recalculates the assessment with the actual substance data, assumed the imported CSA building block has been generated with one of the exposure estimation tools plugged in to Chesar.


3.3 Window organisation To activate the functionalities of Box 2, select the ‘Use Management’ icon from the navigation bar, as shown in the screenshot below:

Figure 1: Chesar navigation bar

The use description window opens. The screen is split in two panes. The pane on the left hand side is dedicated to the navigation within the created tree, while the one on the right hand side displays information on the selected items of the tree.

3.4 Overview of Box 2 functionalities Chesar provides the following functionalities for reporting of market sectors, uses and contributing scenarios:

• Adding new uses or contributing scenarios;

• Editing the entries related to uses or contributing scenarios, in order to describe them with specific relevant information;

• Copying uses and contributing scenarios (including their descriptions) within the life cycle tree;

• Moving up and down uses or contributing scenario to sort the life cycle tree;

• Deleting uses or contributing scenarios;

• Exporting – Importing of CSA building blocks.

In addition Exporting – Importing of the whole life cycle tree is possible.


Figure 2: Box 2 tool bar

Figure 3: Contextual menu in Box 2

When selecting a life cycle element only some functionalities are available (icons are active). For example for the Manufacture.Import life cycle tree element, the only relevant functionalities are “add” , “edit”, CSA blocks import and life cycle tree import.


3.5 Main steps The following scheme describes the main steps to take in Box 2. For each step, reference to the user manual sections is provided. In order to provide a simple scheme, only the “standard” actions are included. Alternatives and case-specific situations are described elsewhere in the user manual.

Table 1: Main steps for use description

Actions Icon/tab/button/link to be activated

Notes Section of user manual 2

1) Decide on how to get started with reporting of uses

Activate Box 2 from Chesar tool bar

Chesar displays only the

monuf/import node

Start from an already built life cycle tree (if available)

that you import

The life cycle tree is uploaded and visible in Chesar

5

Start from a CSA building block (if available) that you

import or

The tree elements available into the

CSA block are added to the

existing life cycle tree.

6

Build a new life cycle tree structure

Add uses, market sectors and/or contributing scenarios as

needed.

4.4

2) Describe elements of life cycle tree

Tonnage balance and life cycle overview: report

tonnages and enter explanation for CSR 9.0.1

4.5.1

Describe market sectors. Edit and modify name and

use descriptors, assign tonnage

4.5.2

Describe uses. Edit and modify name and use

descriptors, assign tonnage

4.5.3


Describe contributing scenarios. Edit and modify

name

4.5.4

Copy and paste life cycle element (contributing scenarios/uses/market

sectors) (if needed)

The copied life cycle element

should be pasted as a “child” to the relevant “parent” life cycle element in the life cycle

tree

3) Share the life cycle or CSA building block with others assessors

Export life cycle

The life cycle export file

generated by Chesar can be

imported into other Chesar instances.

5

Export CSA building block

6

4) Assessment → see user manual 3


4 CREATION OF A LIFE CYCLE TREE USING CHESAR

4.1 Life cycle tree elements A life cycle tree in Chesar is composed of 8 life cycle stages (= use types) as maximum. At each life cycle stage one of more uses can be created, depending on differences in the conditions of use and potentially resulting in differences in the emission factors. For each use created in Box 2, an exposure scenario is created in Box 4.

The following table describes the 8 life cycle stages and describes which activities they cover.

Table 2: Explanations on life cycle elements

No Life cycle stage Explanation

1 Manufacture The substance is manufactured from raw materials and/or intermediates.

2 Formulation The substance is transferred and mixed with other substances in order to be placed on the market in a mixture. Please note: importers transferring substances from large containers into smaller containers without mixing can nevertheless report their activity under this main life cycle stage.

3 Use of substances (as such or in mixture) at industrial sites

The substance is used at industrial sites (small or large) by a downstream user. As a result, the substance has reacted, or it has become part of an article, or it has been released via waste water or exhaust air, and/or it is contained in waste from this use. The subsequent life cycle stages in an article or a waste need to be included into the assessment but are no longer regarded as uses under REACH. Please note: manufacturers’ or importers’ own (end)-uses should be reported under this life cycle stage.

4 Uses of substance (as such or in mixture) by professional workers

The substance is used in a wide-dispersive manner by professional downstream users. Compared to the use at single industrial sites, wide dispersive uses take place everywhere (corresponding to the municipal structure) by multiple actors each at low scale. The risk management capacity of the single actor is low, e.g. there is no site-based technical infrastructure to control releases. The further fate of the substance corresponds to the fate as described for life cycle stage No. 3.

5 Consumer use of substance (as such or in mixture)

The substance is used by consumers (private households). The further fate of the substance corresponds to the fate as described for life cycle stage No. 3.


6 Article Service life (consumer)

The substance has been processed into or onto an article during use (see main life cycle stage no. 3-5). The articles are “used” by consumers. Note: substances remaining in dried coatings or adhesives after application are to be assessed for the service life stage in/on the article. Buildings and constructions and parts of them are considered to be “articles” in this respect. Thus activities like paint-stripping are to be included here.

7 Article Service life (industrial sites))

The substance has been processed into or onto an article during use (see life cycle stage no. 3-5). The article is further processed or maintained by workers at industrial sites. This also includes processing of semi-finished articles by workers with the aim of producing finished articles. The definition of article provided for life cycle stage 6 applies here also.

8 Service life (professional workers)

The substance has been processed into or onto an article during its use (see life cycle stage no. 3-5). The article is “used” or maintained by professional workers. This also includes processing of semi-finished articles by workers with the aim of producing finished articles. The definition of article provided for life cycle stage 6 applies here also.

In addition to the 8 life cycle stages, two further elements are part of the default life cycle tree:

• Manufacture/Import: The life cycle tree is created from this node. This element at the top of the life cycle cannot be removed. It serves as the basis for calculation of the balance of tonnage to be assessed in the CSA. Also, there is a text field available where the assessor can insert a narrative that provides a concise overview on all the uses for the CSR Chapter 9.0.1.

• Market sectors: A market sector is a defined formulating sector, such as producers of cleaners, coatings, adhesives, resins, lubricants or plastic compounds to which a manufacturer or importer supplies a certain substance. The life cycle tree may be structured according to such markets.

Contributing scenarios: For each use, one or more contributing scenarios can be defined, one for human health and one for the environment as a minimum. Such definition includes a name and specification of which activities are covered. In addition, for workers and consumers contributing scenarios use descriptors have to be assigned5.

For each contributing scenario exposure estimates are derived in Box 3 and the conditions of use are defined in Box 4.

In the life cycle tree, the uses are symbolized by squares , the contributing scenarios for environment by circles and the contributing scenarios for workers/consumers by right-arrows .

The colour of the icons refers to the basic life cycle stages: blue for manufacture, red for formulation, grey for end-use and green for service life.

5 The use descriptor for the environment, the ERC, is assigned at the use level. It applies to all contributing scenarios for the environment under that use.


Figure 4: Example for a Chesar life cycle tree with its different elements

A name is to be given to each use and to each contributing scenario reported. In Chesar, this name is called Label. The label can be reported in the form of free text or in the form of standard phrases.

The life cycle tree has a hierarchical structure, which is referred to as “parent-child” relationship in the following sections of this manual:

• The contributing scenario under a use is called “child”. The use is the “parent”

• The use under a market sector or under the formulation is called “child”. The market sector or the formulation is in this case the “parent”

The life cycle tree can be built in a way that it mirrors the market structure of a substance and the corresponding mass flows from formulation, to end-use to service life. The advantage of such a branched, hierarchical way of representing the uses is twofold. It may simply help to get a good visual overview on the use pattern of a substance in a mass flow perspective. It may also help to connect market information with information requirements for the assessment, and to establish the communication links with downstream organisations.

The addition of a new item in the life cycle tree respects the parent child relationship and the order of the eight life cycle stages of the substance life cycle: for example, if a manufacturing use and a use at industrial site are already described in the tree at manufacturing/import level and a new formulation use is added at the same level, it will appear below the manufacturing and above the use at industrial site.

From the assessment perspective, there could be also advantages to describe the uses in a more flat structure: if the conditions during formulation are largely similar across all


types of products, the tree may be branched out into market sectors only below formulation. If the conditions on end-use are largely similar across the different types of products and sectors of end-use, branching out could be also limited or skipped at all.

4.2 Link to exposure assessment (Box 3) In addition to their descriptor-function, some of the descriptor-lists also support identification of the suitable exposure estimation entry in one of the Tier 1 exposure estimation tools plugged into Chesar. Assignment of:

• an environmental release category (ERC) and a tonnage for each use

• a process category (PROC) for a workers’ contributing scenario

• a product category (PC) or article category (AC) for consumers’ contributing scenario

enables the derivation of a default conservative exposure/release estimates with the plugged-in exposure estimation tools, the ECETOC TRA and the ERC-release factors in combination with EUSES. These estimates are driven by the operational conditions reflected in the use category and by the intrinsic properties of the substance.

4.3 Link to exposure scenario in the CSR (Box 4) For each use, an exposure scenario is created in Box 4. The title section of the exposure scenario consists of the corresponding information on uses and contributing scenarios entered in Box 2. This one-to-one relationship is meant to support consistency between use description and exposure scenario building.

4.4 Link to exposure scenario for communication (Box 5) For each use, an exposure scenario for communication is created in Box 5, based on the exposure scenario for the CSR created in Box 4. As for the CSR, the title section of the exposure scenario consists of the information on uses and contributing scenarios entered in Box 2.This information can be standard phrases (for example developed at sector level and made available via the ESCom Catalogue) or free text information created by the single assessor. The use of standard phrases in the exposure scenario for communication would be however preferable as it facilitates easy recognition of exposure scenarios by downstream users, and the translation of exposure scenarios into the various languages.

4.5 Building the life cycle tree Before starting use-reporting in Chesar you may consider whether you want to start with an imported map of uses available in a Chesar-compatible format from external sources (i.e import of life-cycle tree, see in section 5) or defining a new life cycle tree, as illustrated here below.

By default, Chesar displays an empty life cycle tree with the Manufacture/Import node as the starting point.

4.5.1 Adding a use in the life cycle tree To add a new element in the life cycle tree, you have always to right click on one of the

existing elements and select in the contextual menu or click the icon in the tool bar. The sub-menu appearing gives you the opportunity to select the type of element you want to add, respecting the life cycle hierarchical order (see Figure 4). The sub menu depends on the life cycle stage which is selected.

To start building your tree, right click on Manufacture/Import element.


Figure 5: Adding a use to the Chesar life cycle tree

4.5.2 Adding a market sector If you want to structure your uses by market sector, you have to create a market sector element. It is possible to create a market sector from the following previous elements of the life cycle tree:

• Manufacture/import

• Formulation life cycle stage

If the conditions during formulation are similar in all market sectors then you will first create a formulation and then describe your uses by market sector.

If the conditions during formulation are different depending on the type of mixture then you will first create market sectors and then describe the formulation under them.

The market sector description will automatically be transferred into the title of all uses being “child” to that market.

4.5.3 Adding a contributing scenario It is possible to create a contributing scenario for any use. When right clicking on the

use and selecting , the first items in the list offered are the contributing scenarios for environment and worker/consumer related to it.


Figure 6: Adding a contributing scenario to a use

For each use it is possible to add as many contributing scenarios as relevant, depending on the number of process/activities carried out under the use and whether they take place under similar conditions or not. For wide dispersive uses it is recommended to create only one contributing scenarios for the environment. Given the general conditions in wide disperse uses (many actors, multiple small emission sources discharging into the public sewer, low risk management capacity) further sub-differentiation from environmental perspective would not be sensible.

4.6 Editing the elements of the life cycle tree All items defined in the life cycle tree can be edited (for modification). Once the editing mode is selected then the corresponding pop-up window appears. For each life cycle element, a specific set of information can be edited.

4.6.1 Editing manufacture and import At this life cycle tree element, the following tonnages can be reported:

• Tonnage imported

• Tonnage directly exported

• Tonnage used as intermediate under strictly controlled conditions. This tonnage is exempted from assessment

As a result of the tonnage balance, the tonnage assessed in the CSA is displayed as “read only”. This tonnage assessed corresponds to the sum of all manufactured tonnage and tonnage imported minus the tonnage directly exported and minus the tonnage used as intermediate under strictly controlled conditions.

For each “manufacture” reported a manufactured tonnage is provided. The sum of all these tonnages correspond to the total manufactured tonnage.


Figure 7: Editing Manufacture/Import

At the manufacturing/import node an explanations for the CSR section 9.0.1 (overview on uses) can be entered. This enables the assessor to provide a concise explanation on his approach for life cycle description. This information will be then transferred to section 9.0.1 of the CSR as an introduction to the exposure assessment chapter. This may also facilitate a better understanding of the use pattern of the substance covered in the CSR.

4.6.2 Editing market sector When you decide to describe your uses according to a market sector the following information can be reported:

• Label: Name of the market sector phrased6 by the assessor. It is possible to report the label in the form of free text or to use one or more standard phrases. To make use of the standard phrases, these must be imported beforehand to Chesar’s library.

(see user manual 6 section 5). Then, click the Select standard phrases icon (Figure 8) and search and select the appropriate standard phrase(s) within the available catalogue (Figure 9) as explained also in Chesar user manual 5. If none of the existing phrases is appropriate it is possible to overwrite the default label. However once a standard phrase is associated to a label, in order to replace it by free text it is necessary to first remove the standard phrase(s) by clicking the Remove

standard phrases icon . During standard phrases selection it is possible to sort them (Move up or Move down).

Figure 8: Assigning standard phrases to a Label

6 If the assessor starts from maps of uses or imported life cycle trees or CSA building blocks for certain sectors of industry, specific labels/names may already be available. Also standard phrases may be used as far as possible.


Figure 9: Selection of standard phrases

• Chemical Product Category (PC): One or several category describing the market

sector; the Chemical Product Category can be used to characterise the formulating downstream user industries to which the substance is supplied. If none of the items in the picklist describes the product correctly, preferably select a more suitable item from the list of Nordic Use Categories (UCN), and report that under 'other' as a text (not only the code). The UCN entries can be found on http://195.215.251.229/fmi/xsl/spin/SPIN/guide/menuguide.xsl?-db=spinguide&-lay=overview&-view

• A tonnage supplied to that market sector. This tonnage is useful for the assessor to get an overview of the mass flows of the substance within and across the different market sectors. The tonnage supplied to the market sector is used as default tonnage for each life cycle stage created under the market sector (as child of the market sector).

Note: Chesar does not support mass balancing across markets and within the full life cycle of the substance

http://195.215.251.229/fmi/xsl/spin/SPIN/guide/menuguide.xsl?-db=spinguide&-lay=overview&-view

http://195.215.251.229/fmi/xsl/spin/SPIN/guide/menuguide.xsl?-db=spinguide&-lay=overview&-view


4.6.3 Editing uses

4.6.3.1 Common information for all uses • Label: Name of the use phrased7 by the assessor. It is possible to report the label in

the form of free text or to select one or several standard phrases as for the market sector label (see section 4.6.2).

• Environmental Release Category (ERC): A category describing the environmental condition of use in broad terms. The selection offered depends on the life cycle stage. Note that in some situation an Additional ERC covered can be selected. This is only available in very restricted cases where it is assumed that the assessment carried out based on the selected ERC is also covering the situation of the additional ERC, e.g. wide dispersive use indoors (e.g. ERC 8c) are expected to release less to the environment than similar use outdoors (ERC 8f), or process with low releases from articles (ERC 12a) are expected to release less than processes with high releases (ERC 12b).

• Explanation for the CSR exposure scenario: In this field it can be further specified which activities or processes contribute to the use and how this is reflected in the defined contributing scenarios (CS). Also explanations on how the tonnage has been obtained can be provided here. Those explanations will be reported in the CSR at the beginning of the ES.

• Tonnage: The annual tonnage for that use is entered here.

• Internal remarks: The assessor can enter remarks and explanations here that will not be transferred to the CSR.

In case a SpERC is used for exposure assessment in Box 3, a technical description of the process may be available in the SpERC. As in such case this technical description will be reported in the CSR just below the explanations for the CSR exposure scenario, it may be better not to repeat the same information.

Figure 10: Editing uses at formulation life cycle stage

7 If the assessor starts from maps of uses or imported life cycle trees or CSA building blocks for certain sectors of industry, specific labels/names may already be available. Standard phrases may be used as far as possible.


4.6.3.2 Additional information specific to some life cycle stage For some life cycle stages specific information can be added to the core set of information listed under 4.5.3.1:

• Subsequent service life: For substances processed into articles, one or more subsequent service life can be selected from the list of all described service life (this applies to all end-uses).

• Sector(s) of use (SU): A sector of end use can be selected from a pick-list when relevant (this applies to end-use and service life at industrial sites). If none of the items in the pick-list describes the sector of use correctly, preferably select a more suitable item from the list of NACE entries, and report it under 'other' as a text (not only the code). The NACE entries can be found on http://ec.europa.eu/competition/mergers/cases/index/nace_all.html

• Article categories (AC): One or more article category can be selected from a pick-list (this applies to service-life at industrial sites). If none of the items in the pick-list describes the use correctly, preferably select a more suitable item from the list of TARIC entries and report it under 'other' as a text (not only the code AC01 or AC02). Provide further details/explanation in the free text field (“further description of articles”). The TARIC entries can be found on http://ec.europa.eu/taxation_customs/dds/tarhome_en.htm.

4.6.3.3 Additional information exported to IUCLID section 3.5 The assessor can enter additional information for export to IUCLID section 3.5. This information is not needed and processed for exposure assessment and risk characterisation within Chesar. It will only be used to populate the use description in IUCLID:

• Number of sites: The estimated number of sites can be characterised by selecting a range from a pick list (this applies for formulation or uses at industrial sites).

• Substance supplied as such or in mixture: The form in which the substance is supplied to the use can be selected here (this applies for formulation or any end use).

• Technical function of substance: For characterising the technical function of the substance (e.g. heat stabilizer or anti foam agent) an item can be selected from a pick list (this applies to formulation, all end-uses and service life).

The IUCLID 5 CSR plugin can upload the information available in Chesar life cycle tree directly into IUCLID section 3.5 while proceeding with the generation of a full CSR (see Chesar user manual 4 section 5.3). The transfer of information is only possible if the properties of the Chesar substance and the IUCLID substance are matching. More information on the IUCLID 5 CSR plugin is available on the IUCLID website http://iuclid.eu/.

4.6.4 Edition of contributing scenarios When editing a contributing scenario the following information can be reported:

http://ec.europa.eu/competition/mergers/cases/index/nace_all.html

http://ec.europa.eu/taxation_customs/dds/tarhome_en.htm

http://iuclid.eu/


• Label: Name of the contributing scenario phrased8 by the assessor. It is possible to report the label in the form of free text or to select one or several standard phrases as for the market sector label (see section 4.6.2).

• Use descriptor with three different cases:

o Process Category (PROC): a category describing the type of process or activity from the perspective of worker exposure

o Product category (PC): a category describing the type of product from the perspective of consumer exposure on end-use

o Article category (AC): a category describing the type of article from the perspective of consumer exposure during service life

No category is needed for the environmental contributing scenario since this is already assigned at exposure scenario level.

• Explanation for the CSR contributing scenario: In this field it can be further explained to which activities or processes the contributing scenario refers. This explanation is reported at the beginning of the contributing scenario in the CSR.

• Internal remark: Additional information that is not transferred to the CSR.

Figure 11: Editing contributing scenarios for worker exposure

5 EXCHANGE OF CHESAR LIFE CYCLE TREE

By clicking on the button in the tool bar of Box 2 all uses reported in life cycle tree format can be exported. This may, for example, be useful if the derived life cycle tree is applicable as a starting point for various substances manufactured by a company or in a sector. Also downstream user organisation representing a certain sector of formulators or end users may want to convert their maps of uses into a format that can be directly used by registrants to carry out their CSA.

By clicking on the button in the tool bar of Box 2 a life cycle tree can be imported in any Chesar instance. The imported life cycle tree will overwrite the existing one. If you

8 If the assessor starts from maps of uses or imported life cycle trees or CSA building blocks for certain sectors of industry, specific labels/names may already be available. Also standard phrases may be used as far as possible.


want to combine life cycle tree elements you should either import CSA blocks (see section 6) or import a CSA in Box 1 and copy paste the relevant part of it.


6 EXCHANGE OF CHESAR CSA BUILDING BLOCKS

By clicking on the button in the tool bar for a selected life cycle tree element, a CSA building block can be exported. A CSA building block consists of a use or a market sector (including all “child elements”) with all the related exposure assessment, exposure scenarios and risk characterisation. Also a stand-alone contributing scenario can be exported as a CSA building block. Exporting of CSA building blocks may be useful if such blocks are planned to be re-used for a substance with a similar property profile and similar uses. Also industry sector organisation may want to make available CSA building blocks to their membership or to their suppliers, for example Generic Exposure Scenarios (GES) (see user manual 1).

By clicking on the button in the tool bar, a CSA building block can be imported and integrated into the life cycle tree below a selected life cycle element. If the imported CSA block had been generated with one of the exposure estimation methods plugged into Chesar, the exposure assessment is automatically recalculated for the properties of the substance under assessment. Also the risk characterisation is adapted.


Annex 1 - Use descriptors

Acronym Explanation

SU Sector of Use Characterises in which sector of the economy the substance is used, e.g. manufacture of rubber products or building and construction works. In Chesar and IUCLID, industrial uses (SU 3), professional uses (SU 22) and consumer uses (SU 21) are not applied as use descriptors, but as identifiers for a life cycle stage.

PC chemical Product Category Characterises in which types of mixtures (including products with only one component) the substance is finally used, e.g. paints, lubricants, cleaners, adhesives

PROCS PROcess Category Characterises in which application techniques or process types the substance is applied (workers exposure perspective)

AC Article Category Characterises into which types of article the substance is processed.

ERC Environmental Release Category

Characterises the use from the environmental perspective

TF Technical Function Characterises what the substance technically does in a mixture or an article, e.g. flame retardant, antioxidant

For a complete overview on the descriptor system, please refer to the “Guidance on Information Requirements and Chemical Safety Assessment, chapter R.12: Use descriptor system” at http://guidance.echa.europa.eu/docs/guidance_document/information_requirements_r12_en.pdf

http://guidance.echa.europa.eu/docs/guidance_document/information_requirements_r12_en.pdf

http://guidance.echa.europa.eu/docs/guidance_document/information_requirements_r12_en.pdf

EUROPEAN CHEMICALS AGENCY ANNANKATU 18, P.O. BOX 400, FI-00121 HELSINKI, FINLAND ECHA.EUROPA.EU

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