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Spline Gauges A trading name of Apex Tool Group(UK Operations) Ltd

Calibration Laboratory No. 0015

Is accredited in accordance with International Standard ISO/IEC 17025:2017– General Requirements for the competence of testing and calibrationlaboratories.

Initial Accreditation: 6 March 1969Certificate Issued: 3 March 2020

This accreditation demonstrates technical competence for a defined scope specified in theschedule to this certificate, and the operation of a management system (refer jointISO-ILAC-IAF Communiqué dated April 2017). The schedule to this certificate is an essentialaccreditation document and from time to time may be revised and reissued.

The most recent issue of the schedule of accreditation, which bears the same accreditationnumber as this certificate, is available from www.ukas.com.

This accreditation is subject to continuing conformity with United Kingdom AccreditationService requirements.

Certificateof Accreditation

UKAS is appointed as the sole national accreditation body for the UK by The Accreditation Regulations 2009 (SI No 3155/2009) and operatesunder a Memorandum of Understanding (MoU) with the Department for Business, Energy and Industrial Strategy (BEIS).

Chief Executive OfficerMatt Gantley,United Kingdom Accreditation Service

Scan QR Code toverify

2 Pine Trees, Chertsey Lane, Staines-upon-Thames, Middlesex, TW18 3HR

Tel: +44 (0)1784 429000

www.ukas.com

Registered Office: 2 Pine Trees, Chertsey Lane, Staines-upon-Thames, Middlesex, TW18 3HR. Registered in England as a company Limited by Guarantee No. 3076190

F246 Issue: 5 Page 1 of 1

Gareth Jones Spline Gauges (a trading name of Apex Tool Group (UK Operati Piccadilly Tamworth B78 2ER United Kingdom

Direct dial: +44 (0)1784 428766

Email: [email protected]

Date: 20 November 2018

Cust No. 5004

Accr No. 0015

Dear Mr Jones Renewal of Accreditation for:

Following the re-assessment of your organisation, we are pleased to inform you that all improvement actions raised requiring evidence to be submitted to UKAS are now satisfactorily cleared and that your accreditation is renewed. Renewal beyond the expiry date will be dependent upon the successful completion of a re-assessment, including clearance of any improvement actions within an agreed timescale. Please find enclosed our estimate of the effort required to maintain your accreditation over the next four years. Any outstanding invoices for clearance of improvement actions will follow. Your current scope of accreditation is shown on your schedule which is available from our website www.ukas.com. Please contact your Case Manager in the event of any difficulty in downloading the schedule. Our next visit is planned for August 2019 and we will contact you nearer the time to make arrangements. If you want to extend your scope in the future please contact us to discuss your application and the timeframes that you need to obtain accreditation because the extension to scope process can often take several months to complete. You are reminded that you are required to inform UKAS of any changes that may affect your accreditation or compliance with the accreditation requirements. Yours sincerely, S F Giles

S F Giles Section Head – Construction & Physics

Standard: ISO/IEC 17025:2005 - Calibration Laboratory Project Number: 211205-03 Project Name: Re-assessment - 2018 Accr Exp Date: 31/01/2023

http://www.ukas.com/

http://www.ukas.com/customer-area/how-to-apply-for-an-extension-to-scope-ets/

ED376

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Assessment Manager: AT Page 1 of 5

Schedule of Accreditation issued by

United Kingdom Accreditation Service

2 Pine Trees, Chertsey Lane, Staines-upon-Thames, TW18 3HR, UK

0015

Accredited to

ISO/IEC 17025:2017

Spline Gauges A trading name of Apex Tool Group (UK Operations) Ltd

Issue No: 019 Issue date: 09 September 2020

Piccadilly

Tamworth

Staffordshire

B78 2ER

Contact: Mr Gareth Jones

Tel: +44 (0)1827-872771

Fax: +44 (0)1827-874128

E-Mail: [email protected]

Website: www.splinegauges.co.uk

Calibration performed at the above address only

DETAIL OF ACCREDITATION

Measured Quantity Instrument or Gauge

Range Calibration and Measurement

Capability (CMC) Expressed as an

Expanded Uncertainty (k = 2)

Remarks

RANGE IN MILLIMETRES AND UNCERTAINTY IN MICROMETRES UNLESS OTHERWISE STATED

INVOLUTE GEARS, GEAR ARTEFACTS, SPLINE GAUGES (see notes 1 and 2) External

NOTES 1. Gears of the following capacities may be calibrated: Maximum diameter 150 mm, Maximum length 100 mm, Max Weight 30 kg 2. The uncertainties stated assume that journal diameters or reference surfaces have been used to define the measurement axis.

Profile Total deviation (Fα ) Profile slope deviation (fHα) Profile form deviation (ffα)

1.4 1.3 1.4

CNC gear measuring machine.

Helix (Alignment) Total deviation (Fβ) Helix (alignment) slope deviation (fHβ) Helix (alignment) form deviation (fβf)

Helix angle 1.6 1.5 1.6

0° to 45

Single Pitch (fp) 1.8 0.15 to 25 Pitch Difference (fu) Module 1.8 . Cumulative Pitch (Fp) 2.7 Radial Runout of Tooth Space (Fr) 3.3 Normal Circular Tooth Thickness(Sn) 1.6 Horizontal measuring machine

and reference setting standards.

Dimension Over/Pins or Balls (Mdr or Mdk) 5 to 100 100 to 200 200 to 250

1.7 1.9 2.1

250 to 300 2.9

0015

Accredited to

ISO/IEC 17025:2017


United Kingdom Accreditation Service 2 Pine Trees, Chertsey Lane, Staines-upon-Thames, TW18 3HR, UK



Calibration performed at main address only






Remarks


INVOLUTE GEARS, GEAR ARTEFACTS, SPLINE GAUGES (see notes 1 and 2) (cont’d)

NOTES (cont’d)

Internal Profile Total deviation (Fα ) Profile slope deviation (fHα) Profile form deviation (ffα)

1.4 1.3 1.4

CNC gear measuring machine.

Helix (Alignment) Total deviation (Fβ) Helix (alignment) slope deviation (fHβ) Helix (alignment) form deviation (fβf)

Helix angle 1.6 1.5 1.6

0° to 45

Single Pitch (fp) 1.8 0.15 to 25 Pitch Difference (fu) Module 1.8 Cumulative Pitch (Fp) 2.7 Radial Runout of Tooth Space (Fr) 3.3 Normal Circular Tooth Thickness(Sn) 1.6 Dimension Between Pins or Balls (Mdr or Mdk)

5 to 100 diameter 100 to 200 diameter

2.6

2.9

Horizontal measuring machine and reference setting standards.

STRAIGHT SIDED SERRATION GAUGES Plug Serration Angle Dimension Across Flats 90˚ Only.

10 Minutes of Arc 1.6

CNC gear measuring machine or Con-tracer.

Single Pitch (fp) 0.15 to 25 1.8 CNC gear measuring machine.

Module Pitch Difference (fu) 1.8 Cumulative Pitch (Fp) 2.7 Dimension Over Pins or Balls (Mdr or Mdk)

1.7 Horizontal measuring machine


Straight Sided Plug Tooth Thickness

1.2

0015

Accredited to

ISO/IEC 17025:2017











Remarks


STRAIGHT SIDED SERRATION GAUGES (cont’d)

Ring Serration Angle Dimension Across Flats 90˚ Only.

10 Minutes of Arc 1.6

CNC gear measuring machine or Contracer.

Single Pitch (fp) 1.8 CNC gear measuring machine. Pitch Difference (fu) 0.15 to 25 1.8 Module Cumulative Pitch (Fp) 2.7 Dimension Between Pins or Balls (Mdr or Mdk)

20 to 100 Diameter

2.6 Horizontal measuring machine and reference setting standards.

Straight Sided Internal Tooth Thickness 1.2 GENERAL Bore Diameters 5 to 25 Diameter 1.0 Horizontal measuring machine


25 to 50 Diameter 1.3 50 to 100 Diameter 1.9 Major Diameter (Even Teeth) 5 to 100 Diameter 1.1 100 to 175 Diameter 1.5 175 to 250 Diameter 1.9 250 to 300 Diameter 2.3 Major Diameter (Odd Teeth) 5 to 100 Diameter 1.7 100 to 175 Diameter 1.9 175 to 250 Diameter 2.2 250 to 300 Diameter 2.4 Minor Diameter (Even Teeth) 10 to 100 Diameter 1.1 100 to 200 Diameter 1.9 Minor Diameter (Odd Teeth) 10 to 100 Diameter 1.7 100 to 200 Diameter 2.2

0015

Accredited to

ISO/IEC 17025:2017











Remarks


GENERAL (cont’d) NOTES (cont’d) Chamfer 12.7 Con-tracer. Fillet radius 12.7 Con-tracer.

END

0015

Accredited to

ISO/IEC 17025:2017







Appendix - Calibration and Measurement Capabilities

Introduction The definitive statement of the accreditation status of a calibration laboratory is the Accreditation Certificate and the associated Schedule of Accreditation. This Schedule of Accreditation is a critical document, as it defines the measurement capabilities, ranges and boundaries of the calibration activities for which the organisation holds accreditation. Calibration and Measurement Capabilities (CMCs) The capabilities provided by accredited calibration laboratories are described by the Calibration and Measurement Capability (CMC), which expresses the lowest uncertainty of measurement that can be achieved during a calibration. If a particular device under calibration itself contributes significantly to the uncertainty (for example, if it has limited resolution or exhibits significant non-repeatability) then the uncertainty quoted on a calibration certificate will be increased to account for such factors. The CIPM-ILAC definition of the CMC is as follows: A CMC is a calibration and measurement capability available to customers under normal conditions: (a) as published in the BIPM key comparison database (KCDB) of the CIPM MRA; or (b) as described in the laboratory’s scope of accreditation granted by a signatory to the ILAC Arrangement. The CMC is normally used to describe the uncertainty that appears in an accredited calibration laboratory's schedule of accreditation and is the uncertainty for which the laboratory has been accredited using the procedure that was the subject of assessment. The CMC is calculated according to the procedures given in M3003 and is normally stated as an expanded uncertainty at a coverage probability of 95 %, which usually requires the use of a coverage factor of k = 2. An accredited laboratory is not permitted to quote an uncertainty that is smaller than the published CMC in certificates issued under its accreditation. The CMC may be described using various methods in the Schedule of Accreditation: As a single value that is valid throughout the range. As an explicit function of the measurand or of a parameter (see below). As a range of values. The range is stated such that the customer can make a reasonable estimate of the likely uncertainty at any point within the range. As a matrix or table where the CMCs depend on the values of the measurand and a further quantity. In graphical form, providing there is sufficient resolution on each axis to obtain at least two significant figures for the CMC. Expression of CMCs - symbols and units In general, only units of the SI and those units recognised for use with the SI are used to express the values of quantities and of the associated CMCs. Nevertheless, other commonly used units may be used where considered appropriate for the intended audience. For example, the term “ppm” (part per million) is frequently used by manufacturers of test and measurement equipment to specify the performance of their products. Terms like this may be used in Schedules of Accreditation where they are in common use and understood by the users of such equipment, providing their use does not introduce any ambiguity in the capability that is being described. When the CMC is expressed as an explicit function of the measurand or of a parameter, this often comprises a relative term (e.g., percentage) and an absolute term, i.e. one expressed in the same units as those of the measurand. This form of expression is used to describe the capability that can be achieved over a range of values. Some examples are shown below. It should be noted that these expressions are not mathematical formulae but are instead written in a commonly used shorthand for expressing uncertainties - therefore, for purposes of clarity, an indication of how they are to be interpreted is also provided below. DC voltage, 100 mV to 1 V: 0.0025 % + 5.0 μV Over the range 100 mV to 1 V, the CMC is 0.0025 %∙V + 5.0 μV, where V is the measured voltage. Hydraulic pressure, 0.5 MPa to 140 MPa: 0.0036 % + 0.12 ppm/MPa + 4.0 Pa Over the range 0.5 MPa to 140 MPa, the CMC is 0.0036 %∙p + (0.12∙10-6∙p∙10-6) + 4.0 Pa, where p is the measured pressure in Pa. It should be noted that the percentage symbol (%) simply represents the number 0.01. In cases where the CMC is stated only as a percentage, this is to be interpreted as meaning percentage of the measured value or indication. Thus, for example, a CMC of 1.5 % means 1.5 ∙ 0.01 ∙ i, where i is the instrument indication.

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