National Measurement Institute

Certificates of approval

Find a certificate of approval. We issue one for every measuring instrument that meets the pattern approval requirements.
Approval/revision date Status Pattern approval number and instrument certificate Category Sub-category
Expired 6/10B/49: Modern Weighbridge Model MW-2000 Weighing Instrument 6 - Weighing instruments 6/10B - Heavy capacity weighing instruments self-indicating
Cancelled 8/119: Mytton Silva Farm Milk Tank 8 - Milk tanks 8 - Milk tanks
Cancelled 5/6A/63: Gilbarco Driveway Flowmeter Transac 8 Self-serve System 5 - Flowmeters 5/6A - Fuel dispensers for motor vehicles
Cancelled 6/15/100: J. W. Wedderburn Baby-weighing Scale 6 - Weighing instruments 6/15 - Personal weighing instruments
Current 8/93: Ro-Ka Model RKC Milk Tank 8 - Milk tanks 8 - Milk tanks
Cancelled 6/18/12: Yamato Model OTS 300 Overhead-track Weighing Instrument 6 - Weighing instruments 6/18 - Overhead weighing instruments
Cancelled 9/2/1: Tieman Model TA Vehicle Tank 9 - Vehicle tanks 9/2 - Vehicle tanks
Current 5/6A/220: Dresser Wayne Model Global Vista 3/G3490P Fuel Dispenser for Motor Vehicles 5 - Flowmeters 5/6A - Fuel dispensers for motor vehicles
Cancelled 6/9C/96B: Avery Berkel Model 3750 Weighing Instrument 6 - Weighing instruments 6/9C - Weighing instruments self-indicating
Current 14/3/30: ABB Model AquaMaster3 FEV2 DN40 Water Meter 14 - Utility meters 14/3 - Water (utility) meters
Expired 10/2/8: Endress & Hauser Model M-Point DQ 600 Bulk Liquefied Gas Mass Flowmetering System 10 - Gas flowmeters 10/2 - Liquefied gas bulk flowmeters
Current 6/9C/284: CAS Model DB-II Weighing Instrument 6 - Weighing instruments 6/9C - Weighing instruments self-indicating
Cancelled 4/1/0C: Alcoholic Beverage Measures 4 - Volume (dispensers) 4/1 - Beverage measures
Cancelled 10/1/14: Gilbarco Model T079QD-1 LPG Driveway Flowmeter 10 - Gas flowmeters 10/1 - Liquefied gas fuel dispensers
Cancelled 6/9C/259: Teraoka Model CK300 Weighing Instrument 6 - Weighing instruments 6/9C - Weighing instruments self-indicating
Current 15/4/0: Polarimeter (Pol) Tubes used in Self-indicating Polarimetric Saccharimeters to set Optical Length 15 - Food analysing instruments 15/4 - Polarimeter (Pol) tubes
Cancelled 5/6D/1: Halco Multiple Bulk Lubricating Oil Flowmeter and Variants 5 - Flowmeters 5/6D - Obsolete (now 5/6B/- was for vehicle tank flowmeters)
Current 6B/224: Avery Model 4793 - Converted by Accuweigh AWS 6 - Weighing instruments 6B - Converted weighing instruments
Cancelled S226A: Liquip Model EMH400 Pulse Generator/Indicator for Liquid-measuring Systems Supplementary Calculator/Indicators for Liquid-measuring Systems (formerly flowmeter indicators)
Current 6B/234: Howe Richardson Model G-J - Converted by Brisweigh 6 - Weighing instruments 6B - Converted weighing instruments
Current S398 Interim: Postec Model Forman4 Control System for Fuel Dispensers for Motor Vehicles Supplementary Control Systems for Liquid-measuring Systems (formerly flowmeter control systems)
Cancelled 6/10B/76: MWB Model M30T/3090 Weighing Instrument 6 - Weighing instruments 6/10B - Heavy capacity weighing instruments self-indicating
Cancelled 6/9C/215A: A & D Mercury Model FV-60KA1 Weighing Instrument 6 - Weighing instruments 6/9C - Weighing instruments self-indicating
Expired S233A: Gilbarco Model TMS-15 Driveway Flowmeter Control System Supplementary Control Systems for Liquid-measuring Systems (formerly flowmeter control systems)
Current 6/14B/25: Kotzur Model BW 15-4400-I Discontinuous Totalising Automatic Weighing Instrument 6 - Weighing instruments 6/14B - Automatic weighing instruments except belt weighers
Cancelled 6/10B/49B: Modern Weighbridge Model MW-2000 Weighing Instrument 6 - Weighing instruments 6/10B - Heavy capacity weighing instruments self-indicating
Cancelled S374: Transponder Technologies Model Trans Tech Control System for Fuel Dispensers for Motor Vehicles Supplementary Control Systems for Liquid-measuring Systems (formerly flowmeter control systems)
Cancelled 6/14G/4: Digi Model HI-3600E Automatic Catchweighing Instrument 6 - Weighing instruments 6/14G - Automatic catchweighers
Current 6/10B/30D: Avery Berkel Model 5451 Weighing Instrument 6 - Weighing instruments 6/10B - Heavy capacity weighing instruments self-indicating
Current S495: M+F Model MFX_4 Control System for Liquid-measuring Systems Supplementary Control Systems for Liquid-measuring Systems (formerly flowmeter control systems)
Current 6/20A/9: Transport World Solutions AB Model WT1000 Weighing Instrument 6 - Weighing instruments 6/20A - Wheeled loader weighing instruments
Current 13/2/9: Quantronix Model CubiScan 100-TLFT Non-automatic Weighing and Dimensional Measuring Instrument 13 - Dimensional measuring instruments 13/2 - Weighing and dimensional measuring instruments
Cancelled S104: Toledo Digital Indicator Model 8134 (Cancelled) Supplementary Digital Indicators
Current 6/4C/234: Ohaus Model CKW-55 Weighing Instrument 6 - Weighing instruments 6/4C - Counter weighing instruments self-indicating
Current S779: Holi Scale Model AS130 Bending Beam Load Cell Supplementary Load Cells
Current S199A: AND Mercury Model AD-4321A Digital Indicator (Expired) Supplementary Digital Indicators
Cancelled 6/4C/267: Teraoka Model Digi DS-676 Weighing Instrument 6 - Weighing instruments 6/4C - Counter weighing instruments self-indicating
Current S806: Givex Model Retail Point of Sale (POS) System Supplementary Point of Sale Systems
Expired S281: lshida Model MTC-20 Digital Mass Indicator Supplementary Digital Indicators
Current 6/4C/295: Teraoka Model DIGI DS-166 Weighing Instrument 6 - Weighing instruments 6/4C - Counter weighing instruments self-indicating
Current S817: Teraoka Model DIX-3000 Digital Indicator Supplementary Digital Indicators
Current S363: Ranger Model 5000 Digital Indicator Supplementary Digital Indicators
Cancelled 6/4D/287: TEC Model SL-2200-79-HO-AU Weighing Instrument 6 - Weighing instruments 6/4D - Counter weighing instruments self-indicating and price-computing
Current S464: Sartorius Model PR5510/00 (X4) Digital Indicator Supplementary Digital Indicators
Cancelled 6/4D/324: Avery Berkel Model M2 100 Weighing Instrument 6 - Weighing instruments 6/4D - Counter weighing instruments self-indicating and price-computing
Current S562: NUWEIGH Model CBH 171 Digital Indicator Supplementary Digital Indicators
Current 6/4D/356: Mettler Toledo Model bCom-T2A-15D Weighing Instrument 6 - Weighing instruments 6/4D - Counter weighing instruments self-indicating and price-computing
Current S722: Laumas Model TLB485 Digital Mass Indicator Supplementary Digital Indicators
Current 6/4D/387: Avery Berkel Model XTi 400 Weighing Instrument 6 - Weighing instruments 6/4D - Counter weighing instruments self-indicating and price-computing
Cancelled S133B: Molen Model CSP-M-25t-C3-SC-SS Load Cell (Cancelled) Supplementary Load Cells

Instrument types

Certificates of approval – 0 cancelled

Find cancelled certificates of approval.

Certificates of approval – 1 length

Find certificates of approval for length measuring instruments.

Certificates of approval – 2 area

Find certificates of approval for area measuring instruments.

Certificates of approval – 3 trade measurement weights

Find certificates of approval for trade measurement weights.

Certificates of approval – 4 volume (dispensers)

Find certificates of approval for volume (dispensers).

Certificates of approval – 5 flowmeters

Find certificates of approval for flowmeters.

Certificates of approval – 6 weighing instruments

Find certificates of approval for weighing instruments.

Certificates of approval – 7 counting instruments

Find certificates of approval for counting instruments.

Certificates of approval – 8 milk tanks

Find certificates of approval for milk tanks.

Certificates of approval – 9 vehicle tanks

Find certificates of approval for vehicle tanks.

Certificates of approval – 10 liquefied gas

Find certificates of approval for liquefied gas.

Certificates of approval – 11 electronic flowmeters

Find certificates of approval for electronic flowmeters.

Certificates of approval – 12 natural gas for vehicles flowmeters

Find certificates of approval for natural gas for vehicle flowmeters.

Certificates of approval – 13 dimensional measuring instruments

Find certificates of approval for dimensional measuring instruments.

Certificates of approval – 14 utility meters

Find certificates of approval for utility meters.

Certificates of approval – 15 quality measuring instruments

Find certificates of approval for quality measuring instruments.

Certificates of approval – 16 evidential breath analysers

Find certificates of approval for evidential breath analysers.

Certificates of approval – 17 density hydrometers

Find certificates of approval for density hydrometers.

Certificates of approval – legal measuring instruments

Find certificates of approval for legal measuring instruments.

Certificates of approval - supplementary

Find supplementary certificates of approval.

About certificates of approval

We issue a certificate of approval for every measuring instrument that meets pattern approval requirements.

Certificates of approval usually comprise:

  • a certificate including the advice and conditions of approval
  • a technical schedule that describes the pattern and any variants
  • a test procedure with the tests (not already covered by other published test procedures) used to verify the instrument and the maximum permissible errors of the instrument.

The types of certificates are:

  • certificates of approval for a specific variant of measuring instrument
  • supplementary certificates of approval for pattern approved modules that connect to measuring instruments
  • general certificates for instruments made to a common standard.

Certificate status:

  • Interim certificates are valid for a limited period.
  • Cancelled and expired certificates are not valid for new instruments (you can check certificates to check their validity).
  • Withdrawn certificates are not valid for any instruments (including those which may have been installed and verified prior to the withdrawal date).
  • Provisional certificates allow you to install instruments and use them for trade (under the conditions set out in the certificate) while we assess the instrument for full approval.

For accessible versions of these certificates, email our pattern approval section.

More information

Once you have a certificate of approval, your instrument will need to be verified for trade use
Find a servicing licensee to verify your instrument for trade use
Find national instrument test procedures for verifying instruments used for trade