56 fogex manual - water mist uk

ManualManual

Assessed to ISO 9001: 2000Certificate number 018

e-mail [email protected] www.watermistftl.co.uktel 0845 453 1320fax 01525 285864

Water Mist Fire Technologies LtdUnit 5, Youngs Industrial Estate

Stanbridge Road, Leighton BuzzardBedfordshire, LU7 4QB

User GuideIssue 1 – October 2004

FOGEX HIGH-PRESSURE

WATER MIST CYLINDER SYSTEMS

Watermist Fire Technologies

ContentsContentsChapter 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Chapter 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Safety and Environmental Considerations . . . . . . . . . . . . 4

Chapter 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Design of the System. . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Chapter 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

System Components . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Chapter 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

System Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Chapter 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Post-Discharge & Recharge Procedure . . . . . . . . . . . . . 18

Chapter 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Maintenance Procedures . . . . . . . . . . . . . . . . . . . . . . . 19

Appendix 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Particular System Specification . . . . . . . . . . . . . . . . . . . 20

Appendix 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Relevant Documentation . . . . . . . . . . . . . . . . . . . . . . . 22

Water Mist Fire Technologies

Chapter 1Chapter 1Foreword

Th is manual is written for those who own and/or use FOGEX high-pressure water-mist cylinder systems manufactured by Water Mist (Fire) Technologies Ltd.

IMPORTANT

Th is information is the property of Water Mist (Fire) Technologies Ltd who reserves the right to carry out improvements and/or changes without notice. No reproduction or modifi cation in full or part is allowed other than for internal use. Every eff ort has been made to ensure the accuracy of the informa-tion contained herein. However, Water Mist (Fire) Technologies Ltd disclaim any liability for the use thereof. Th e use of this manual, by whomsoever, is done at their own responsibility and risk.

Any queries concerning the information presented in this manual should be addressed to:

Water Mist (Fire) Technologies LtdUnit 5, Youngs Industrial EstateStanbridge RoadLeighton BuzzardBedfordshireLU7 4QB

Email: [email protected]

FOGEX and MISTEX are trade marks of Invention Technologies Pty (trading as Phirex Australia). All technology, third party verifi cation, test protocols and know-how relating to the design and applica-tion that belongs to Invention Technologies Pty, is licensed by agreement to Water Mist (Fire) Tech-nologies Ltd. All other relevant third party verifi cation and know-how are the property of Water Mist (Fire) Technologies Ltd, such information is protected by copyright, patent and trade mark laws.


Chapter 2Chapter 2Safety and Environmental Considerations

Safety is of paramount importance. No-one should interfere or operate water mist systems without the proper training and instruction.

All personnel who are assigned to maintain and operate the equipment should be properly trained. Water Mist (Fire) Technologies Ltd recommends that all personnel involved in such activities are accredited by Water Mist (Fire) Technologies Ltd and are in possession of the relevant IOSH Safety Passport or CSCS Skills Card.

All personnel working in an enclosure protected by a water mist system should be warned of any and all dangers associated with such. Personnel in the protected area should be trained in the modes of actuation in case of fi re and system activation.

All personnel operating on the system should wear the appropriate PPE (Personal Protective Equip-ment), which should include as a minimum safety boots and goggles.

As a safety measure, the protection cap supplied with the cylinders must always be fi tted when the cylinder is being transported.

During maintenance or building works that could activate the water mist system, e.g. dust in a detec-tor, the system should be isolated or disconnected.

Human safety relating to the deployment of water mist in manned areas has been addressed by the US Environmental Protection Agency (E.P.A). Th e overall conclusion was that water mist using potable water is safe for use in occupied areas.

Areas protected by a water mist system should be evacuated in the event of a fi re alarm, not because of the application of mist itself but in order to prevent harm to personnel due to exposure to the fi re and its combustion products.

Water mist can signifi cantly reduce visibility in the protected areas during discharge. It will dissipate fairly rapidly afterwards, depending on factors such as air temperature and humidity. Th e design of escape routes should take into account this fact.

Water mist using potable water does not present an environmental hazard unless the water absorbs dangerous substances from the fuel or fi re. In such cases careful consideration should be given to pre-venting water entering the drainage system or the ground.


Chapter 3Chapter 3Design of the System

Th e design of the system will determine the system performance and user expectations. It is impor-tant to review the design with the system supplier.

At present, there are no European prescriptive water mist standards. However, the product supplied will be in accordance with the relevant product and technical standards available at the time of design. Th ese documents are referenced in Appendix 2.

Specifi c details such as system run time, nozzle type and from this, water quantity, will have been determined by specifi c type testing for the application; fuel type; size and layout of the protected area and contents therein; insurer requirement; fi re brigade attendance time; consultant brief; particular manufacturer recommendations; or a combination of the above.

Water mist systems are designed to perform one of the following functions:

• To extinguish a fi re completely so that no re-ignition will occur

• To suppress a fi re, so that extinguishment has taken place and intervention can occur to prevent further re-ignition

• To control a fi re scenario, to allow time for evacuation or fi re brigade attendance

Particular system components, water quantity and run time should be detailed in the Commissioning Certifi cate and Appendix 1.


Chapter 4Chapter 4System Components

FOGEX high-pressure water mist cylinder systems are based on similar technology. Th e actual com-ponents used will depend on the particular design of the application.

Th e FOGEX water mist system comprises of the following main components:

• One or more 67.5 litre nitrogen cylinders charged with nitrogen to 230 bars at 15oC

• Nitrogen valve, dependent on the type of system and number of cylinders can be one of the fol-lowing:

» Indirect High-Pressure Valve (for automatic closed head systems)

» Electric valve for open deluge systems

» Pneumatic valve (where there is more than one nitrogen cylinder)

» Manual release valve (mounted on master nitrogen cylinder valve)

• Pressure regulator

• Pressure monitoring gauge (mounted on all nitrogen cylinder valve(s))

• Discharge monitoring pressure switch

• Low pressure monitoring switch

• 67.5 litre water cylinder (plastic lined)

• Water valve (actuator head), fi tted into each water cylinder

• Interconnecting hoses

• Water manifold (where more than 1 water cylinder is installed)

• Check valve (where more than 1 water cylinder is installed)

• Test point

• Directional valve

• Stainless steel pipe work

• Stainless steel compression fi ttings

• FOGEX water mist nozzle(s)

Th e quantity of the water and nitrogen cylinders depends on design factors including the number and type of nozzle and the system discharge (or run) time. Th e ratio of water to nitrogen cylinders is 2:1. Cylinder confi gurations are normally as indicated in Table 4.1.


System Designation Qty of water cylinders

Qty of nitrogen cylinders

Total SystemWater Qty

1 + 1 1 1 67.5 litres

2 + 1 2 1 135 litres

3 + 2 3 2 202.5 litres

4 + 2 4 2 270 litres

5 + 3 5 3 337.5 litres

6 + 3 6 3 405 litres

Table 4.1 Quantity of Water and Nitrogen Cylinders

Nitrogen CylinderTh e nitrogen cylinder has a water capacity of 67.5 litres and is charged with 230 bars of dry nitrogen at 15oC. Th e cylinder is seamless with a working pressure of 230 bars and a test pressure of 345 bars. Th e cylinder is π-marked and complies fully with the European Transportable Pressure Directive. A system may have more than one nitrogen cylinder. In this case, it is always the fi rst (or master) cylinder that is fi tted with the discharge-initiating valve.

Figure 4.1 Nitrogen Cylinder fi tted with protective head cap

Indirect High-Pressure Valve

Th e Indirect High-Pressure Valve (IHP) is fi tted to the fi rst nitrogen cylinder of closed-head systems that contain FOGEX FA automatic bulb-type nozzles.

Figure 4.2 Indirect High-Pressure Valve as used on the fi rst (master) nitrogen cylinder

Th e valve comes complete with the following attachments and outlets:

• Pressure Gauge

• Discharge Outlet

• Low pressure actuator c/w manual ball valve

• Manual release c/w gauge for low-pressure side and manual ball valve


Th e IHP valve is a diff erential pressure valve that is normally closed. Th e valve is held closed by a bal-ance from the high pressure side of the stored nitrogen with that of the low pressure side at the top of the valve.

Th e low pressure outlet is fi tted with a ball valve and then is connected via a non-return valve to the system pipe work. Th e high pressure discharge outlet also connects to the system pipe work via a “T” piece.

Upon commissioning, the system pipe work is pressurised to 19 bars, and the manual ball valve to the low pressure actuator is opened.

When one or more nozzles actuate the pressure drops in the pipe work. Th e drop in pressure causes a pressure diff erence across the valve. Th e valve opens releasing the cylinder contents at 230 bars through the discharge outlet. Th e nitrogen fl ows via a pressure regulator, where the pressure is reduced to 110 bars. It then fl ows to pressurise the water cylinder(s). Other nitrogen cylinders that maybe connected to the system are actuated via the pressure opening a pneumatic valve.

Electric Nitrogen Valve

Th e electric nitrogen valve is used on open deluge systems only, that use the FOGEX F type nozzle. A F type nozzle. A Fsignal from the fi re alarm control panel opens the valve to discharge the nitrogen.

Th e valve comes complete with the following attachments and outlets:

• Pressure Gauge

• Discharge Outlet

• Low pressure switch

• Manual release

Figure 4.3 Electric Valve as used on the fi rst (master) nitrogen cylinder of open deluge systems

Pneumatic Nitrogen ValveA pneumatic valve is used where more than one nitrogen cylinder is required. Th e valve is opened by external pressure generated through the opening of an IHP valve, electric valve or manual release of the fi rst nitrogen cylinder.


Figure 4.4 Pneumatic Valve as used on all secondary nitrogen cylinders

Manual Release

Th e manual release requires the user operate to open the fi rst nitrogen cylinder to initiate a system discharge.

Figure 4.5 Manual Release as fi tted on the IHP valve on the fi rst nitrogen cylinder

Figure 4.6 Manual Release as fi tted on the electric valve on the fi rst nitrogen cylinder

Th e manual release should only be used in the following cases:

• On manual only systems;

• When a fi re has been identifi ed and intervention is required before the detection system has operated;

• If the detection system has failed


Pressure Regulator

Th e pressure regulator is a device that reduces the pressure discharged from the nitrogen cylinder from 230 bars to 110 bars. Th is ensures that the optimum design pressure of 100 bar at the nozzle is achieved allowing for potential pressure loss in the pipe work and fi ttings.

Figure 4.7 Pressure Regulator

Low Pressure SwitchTh e low pressure switch is fi tted to all nitrogen cylinders to monitor loss of pressure. Th e switch is a volt-free contact set at 160 bars that should be connected and monitored by the control panel. Should the nitrogen pressure fall below this a fault is generated. Th e nitrogen should be recharged as soon as possible thereafter.

Discharge Pressure Switch

Th e discharge pressure switch is a monitored volt-free contact that is normally open. In the case of a single water cylinder arrangement it can be fi tted to the water cylinder valve, nitrogen valve, or via a ‘T’-piece in the downstream pipe work. For more than one water cylinder the pressure switch is fi t-ted to the manifold. As the water discharges the switch closes and a signal is sent to the control panel, indicating system discharge.

An alternative arrangement is on the nitrogen cylinder valve. In this case, switch closure is achieved through the fl ow of nitrogen at pressure when the valve opens. Th e discharge pressure switch is stain-less steel in construction.

Figure 4.8 Discharge Pressure Switch

Water Cylinder

Th e water cylinder has a water capacity of 67.5 litres. Th e cylinder is seamless with a working pressure of 200 bars and a test pressure of 300 bars. Th e cylinder is π-marked and complies fully with the Euro-pean Transportable Pressure Directive. Th e cylinder is lined with a plastic coating to prevent corrosion of the steel. Th e water used is de-mineralised.


Figure 4.9 Water Cylinder c/w Valve

Water Cylinder Valve

Th e water cylinder valve consists of two nitrogen ports (one in, one out); and an outlet port. Th e outlet section of the valve is a service removable. Th e ½" outlet is connected directly to the pipe work for a single cylinder system or to a manifold for a multi-cylinder system.

Th e quiescent storage pressure of the water cylinder is zero.

To ensure that the system operating pressure of 100 bars is attained quickly the internal valve mecha-nism has been tested to operate at no more than 80 bars. At this point, the valve opens and water discharges through the system to the nozzles.

Should one of the nitrogen ports not be used, a blanking plug is inserted.

Water Manifold

A water manifold is a device that collects all the water outlets from the water cylinders.

Water manifolds may be one of two sizes:

• 3-port, allows connection of between 1 and up to 3 water cylinders

• 6-port, allows connection of between 1 and up to 6 water cylinders

Figure 4.10 Manifold Assemblies

Th e inlet and outlet ports of the manifold are as follows:

• 3-port water inlet manifold » 3 off ½" inlet ports from water cylinders » 4 off ¾" outlet ports

• 6-port water inlet manifold » 6 off ½" inlet ports from water cylinders » 5 off ¾" outlet ports


At least one outlet port connects to pipe work that extends to the nozzles. Orientation of the outlet ports mean that one or more choice of direction is available for the pipe work extending to the nozzles. Th e other outlet ports may be used as connections to:

• A test point used for system pressure test or charging

• A discharge pressure switch

Check Valve

A check valve is a non-return valve that prevents the fl ow of water or nitrogen back through the manifold to the storage cylinder. It also prevents system failure or potential injury should one of the connected cylinders be removed from the system.

Figure 4.11 Check Valve

Directional Valve

A directional valve is a manual or more normally an electric ball valve, installed in line with the pipe work. Its purpose is to direct the fl ow of water upon discharge to a particular area of the system. An example would be a common cylinder bank protecting 3 risks. Th e water quantity could be designed so that only suffi cient water was available for a single risk. Upon detection of a fi re, the system would be activated and only the directional valve associated with the risk with a fi re would be opened.

Figure 4.12 Manual Ball Valve that can operate as a directional valve

Figure 4.13 Electric Ball Valve that can operate as a directional valve


Directional valves are only generally used when a risk assessment or insurer has determined that no more than one fi re incident will occur. Water quantity will always be for the largest risk. In the above case, if one risk were larger than the remaining two, the water quantity would be determined on the largest risk.

Compression Fittings

A compression fi tting consists of a body constructed out of 316L grade stainless steel, a locking nut and a compression ferrule. Compression fi ttings can have either one ferrule or two ferrules. Tightening of the locking nut compresses the ferrule(s) onto the pipe and forms a leak-tight seal. Diff erent fi t-ting types include stud couplings (a combination of a compression coupling to a BSP thread); bushes (male-female adaptors); sockets; male-male adaptors; bonded seals; adaptors with parallel and/or ta-pered BSP threads; tees, elbows, crosses, caps and plugs.

Figure 4.14 Examples of Stainless Steel Compression Fittings

NozzlesTh e type of nozzle used will depend on the type of system (see below). Th ere are two basic types of nozzle:

• Open Deluge (or F nozzle) F nozzle) F

• Closed-Head (or FA nozzle)

Both types of nozzles are constructed of an aluminium-bronze or stainless steel body dependent on the application. All nozzles are fi tted with a stainless-steel strainer within to prevent blockage.

Figure 4.15 Open deluge F type nozzlesF type nozzlesF

Th e closed-head nozzle contains an alcohol fi lled bulb that is temperature dependent. Once the tem-perature has been achieved the alcohol will expand, and the bulb will shatter, opening up the nozzle.


Figure 4.16 Closed-head FA type nozzles

For particularly harsh or dirty environments, or applications where the nozzle could be tampered with, tamper-proof blow-off caps are available.

Figure 4.17 Tamperproof blow-off cap for an open deluge F type nozzleF type nozzleF

Figure 4.18 Tamperproof blow-off cap for a closed-head FA type nozzle


Chapter 5Chapter 5System Operation

Th is chapter details how the system will operate in an event of a fi re.

Th ere are two types of system: one type uses the FOGEX F-type open deluge nozzle (i.e. F20, F27 F-type open deluge nozzle (i.e. F20, F27 For F11); the other type uses the FOGEX FA-type automatic bulb nozzle (i.e. FA20, FA27 or FA11). Th ese types of systems are referred to as open deluge and closed head respectively.

Open Deluge

Open deluge systems use the F range of FOGEX nozzles. Once the system is activated water mist is F range of FOGEX nozzles. Once the system is activated water mist is Fgenerated at each and every nozzle

Table 5.1 below details the application of the types of nozzle:

Type of Nozzle Flow Rate per Nozzle Application

F20 6.4 litres/min General room protection below 5m in height

F27 5.3 litre/min Door opening or water curtain protection below 5m in height; escalator protection; oven or fat-fryer protection

F11 10 litres/min Local application or general room protec-tion above 5m height

Table 5.1 Types and applications of the F series open deluge nozzlesF series open deluge nozzlesF

Open deluge systems are most commonly activated by a detection system. Th e detection system type will depend on the application. Heat probes are generally used in ovens; fl ame detectors on printing presses and optical or ionisation smoke for general room applications. Activation of the system will be by the “co-incidence connection” principle, whereby at least two detectors, wired on separate cir-cuits, will register an alarm or fi re condition. Th e control panel will then signal to the water mist to discharge, after a pre-programmed delay time.

Open deluge systems can also be activated manually, either by way of a manual release fi tted to the fi rst nitrogen cylinder (without the requirement for a detection system); or via the manual release or break glass of the detection circuit.

Open deluge systems will use an electric valve fi tted with manual release override on the fi rst nitrogen cylinder. Th e nitrogen fl ows out of the discharge port, through the pressure regulator and into water cylinder(s). Th e water cylinder(s) discharge water at 110 bars into the system pipe work and to the nozzles. Th e nitrogen will also open the remaining nitrogen cylinders installed via their pneumatic valve.

NOTE In an open deluge system water mist will discharge from all open nozzles.NOTE In an open deluge system water mist will discharge from all open nozzles.NOTE

As the water fl ows through the pipe work a pressure switch will close, indicating that discharge is tak-ing place.

Water discharge will continue until all of the water has been depleted, unless an isolation valve (if fi t-ted) is closed.


Closed Head

Closed head systems use the FA range of FOGEX nozzles. Each nozzle is fi tted with an alcohol-fi lled, temperature-sensitive bulb. Th e system will only discharge water if one or more of the bulbs are acti-vated. Th e system is designed for the worst-case scenario where a designed maximum number of noz-zles could be actuated. Th e water quantity required, and hence the number of cylinders, requires this maximum area of coverage, design runtime and nozzle fl ow-rate at design stage.

Th e type of nozzle and the temperature of the bulb installed will have been determined at design stage.

Table 5.2 below details the application of the types of nozzle:

Type of Nozzle Flow Rate per Nozzle Application

FA20 6.4 litres/min General room protection below 5m in height

FA27 5.3 litre/min Door opening or water curtain protection below 5m in height

FA11 10 litres/min Local application or general room protection above 5m height

Table 5.2 Types and applications of the FA series closed-head nozzles

Table 5.3 indicates the temperature release ratings of the alcohol fi lled bulbs.

Bulb Temperature Rating Bulb Colour

57oC Orange

68oC Red

79oC Yellow

93oC Green

141oC Blue

182oC Mauve

240oC Black

Table 5.3 Colour designation of alcohol fi lled temperature-sensitive bulbs

Th e 57oC bulbs are fi tted as standard.

A closed-head system has to be charged with either dry nitrogen or water during the commissioning-phase. Th is pressure is the normal quiescent pressure of operation. At 15oC the pressure contained in the system pipe work and held back at the nozzle is 19 bars.

A closed-head system always uses one nitrogen cylinder with an Indirect High Pressure (IHP) valve. If more than one nitrogen cylinder is installed the remaining nitrogen cylinders are fi tted with a pneu-matic valve.

In the event of a fi re that activates a bulb, the pressure will drop in the system, which will open the IHP valve on the fi rst nitrogen cylinder. Th e nitrogen fl ows out of the discharge port, through the pressure regulator and into water cylinder(s). Th e water cylinder(s) discharge water at 110 bars into the system pipe work and to the nozzle that activated. Th e nitrogen will also open the remaining nitrogen cylinders installed via their pneumatic valve.


NOTE In a closed head system water mist will only discharge from nozzles that have activated. All NOTE In a closed head system water mist will only discharge from nozzles that have activated. All NOTEother nozzles will remain closed unless activated through temperature of the fi re spread.

As the water fl ows through the pipe work a pressure switch will close, indicating that discharge is tak-ing place.

Water discharge will continue until all of the water has been depleted, unless an isolation valve (if fi t-ted) is closed.


Chapter 6Chapter 6Post-Discharge & Recharge Procedure

In the event of a system discharge, precautions should be made and a procedure adopted for re-charging and re-commissioning the system.

In the event of a fi re the protected area should not be re-entered unless deemed safe to do so by the local fi re brigade or other suitably qualifi ed personnel.

Should there be any standing water near electrical equipment where possible live-voltages may be present, power should be shut-down, and suitable health and safety precautions should be followed.

Th e authorised supplier or maintainer of the system should be contacted as soon as possible to re-charge and re-commission the system.

Nitrogen and water cylinders will need to be recharged. Th e water cylinder valve will need to be refur-bished in accordance with the manufacturer’s procedures.

Th e nozzle(s) through which water has discharged should be removed and replaced. Th is is to en-sure that system performance remains unaff ected for subsequent activations. In the case of automatic closed-head bulbs, the alcohol fi lled bulb will need to be replaced, if activated or damaged. Should any tamperproof nozzle caps have been damaged or discharge has occurred, these should be replaced.


Chapter 7Chapter 7Maintenance Procedures

For the water mist system to protect and operate at optimum performance for the life-time of the application certain maintenance procedures should be followed.

Th e system has been designed to meet the design criteria and application at the time of installation. Change of use, fi re hazard, size or construction may aff ect the performance of the system and the sys-tem supplier should be contacted as soon as possible after any such changes.

Inspection intervals and procedures are as indicated below.

Weekly

• Visual check of the hazard for changes or alterations that could aff ect the system performance.

• Visual check of the control panel to check for faults.

• Inspect pressure gauges on the nitrogen cylinders for correct reading.

• If installed, check trace heating and localized heating systems.

• Carry out a visual check that there is no obvious damage to pipe work.

• Carry out a check that all operating controls and components are properly set and undamaged.

Monthly

Check that all personnel who may have to operate the equipment or system are properly trained and authorised to do so and, in particular, that new employees have been instructed in its use.

Six Monthly

To be carried out by qualifi ed and authorised service providers.

• Check connecting hoses for tightness and integrity

• Check water cylinder contents

• Inspect support brackets and frame of cylinders/manifold

• Inspect and test the fi re alarm system, if fi tted.

Yearly

Check water quality for signs of deterioration or bacterial contamination.

Ten yearly

Ensure all cylinders undergo a hydrostatic test in accordance with current standards.


Appendix 1Appendix 1Particular System Specification

Client Name

Client Address

Telephone

Fax

Email

Responsible Person

Protected Hazard

Fuel Class (please circle) Class A Class B

Particular Fuel

Type of System (please circle) Open Deluge Closed Head

Type of Actuation (please circle) IHP Electric Manual Self-contained

Type of Detectors

Type of Control Panel

Type of Nozzle

Number of Nozzles (include any in voids)

Tamperproof blow-off caps (please circle) Yes No

System Design Run Time minutes

Total Water Quantity litres

Number of Water Cylinders

Number of Nitrogen Cylinders

Number of Directional Valves

Type of Directional Valve

Date of Installation

Date of Commissioning and Handover

As Fitted Drawings present (please circle) Yes No

Hydraulic Calculations present (please circle)

Yes No


Other Information

Authorised Signature

Name

Position

Date


Appendix 2Appendix 2Relevant Documentation

• FOGEX Design and Installation Manual

• NFPA750 Standard on Water Mist Fire Protection Systems (2003)

• Draft ISO Standard ISO 6182-9 Fire protection — Automatic sprinkler system Part 9: Require-ments and test methods for water mist nozzles

• CEN/TC 91 Draft on Fixed fi re fi ghting systems — Water mist systems — Design and instal-lation

• TBN 14 Loss Prevention Council Technical Briefi ng Note — Legionella and Fire Fighting Sys-tems, May 1999

• BS5839-1 (2002) Part 1: Code of Practice for System Design, Installation, Commissioning and Maintenance

• BS6266 (2002) Code of practice for fi re protection for electronic equipment installations

• BS EN 1968 (2002) Transportable Gas Cylinders — Periodic inspection and testing of seamless steel gas cylinders

56 fogex manual - water mist uk

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