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
Current P10/2/17: (Interim Certificate) Liquip Model VTM Bulk LPG Mass Flowmetering System 10 - Gas flowmeters 10/2 - Liquefied gas bulk flowmeters
Current 6/9C/307: Gedge Systems Model Longneck-60 Weighing Instrument 6 - Weighing instruments 6/9C - Weighing instruments self-indicating
Expired S3/0: Driveway Flowmeter Nozzles Supplementary General supplementary
Cancelled P10/1/7: Indeng Model MK0 LPG Driveway Flowmeter 10 - Gas flowmeters 10/1 - Liquefied gas fuel dispensers
Current 6B/209: Avery Model 5492 - Converted by Alan Bennett Scale Services 6 - Weighing instruments 6B - Converted weighing instruments
Cancelled S100: Calcopac Series T350 Driveway Flowmeter Price-Computing Indicator (Cancelled) Supplementary Calculator/Indicators for Liquid-measuring Systems (formerly flowmeter indicators)
Cancelled 5/6H/1: Gilbarco Flowmeter with Tokheim 600 Series Meter 5 - Flowmeters 5/6H - Obsolete (now 5/6B/- was for vehicle-mounted flowmeters)
Current S382: Ultrakust Model PETRODAT 3002 Calculator/Indicator for Liquid Measuring Systems Supplementary Calculator/Indicators for Liquid-measuring Systems (formerly flowmeter indicators)
Cancelled 6/10B/51B: Modern Weighbridge Model MW4000E Weighing Instrument 6 - Weighing instruments 6/10B - Heavy capacity weighing instruments self-indicating
Cancelled 7/106: Hartner Precision Counting Balance Model 2550 7 - Counting instruments 7 - Obsolete (now 6/4C/- was for counting instruments)
Current S148A: L & L Model DCA Driveway Flowmeter Control System (Expired) Supplementary Control Systems for Liquid-measuring Systems (formerly flowmeter control systems)
Current 6/10B/85: Tri State Weighing Model TS1001 Weighing Instrument 6 - Weighing instruments 6/10B - Heavy capacity weighing instruments self-indicating
Cancelled 6/10A/100: Carl Schenck Weighbridge 6 - Weighing instruments 6/10A - Heavy capacity weighing instruments non-self-indicating
Expired S261: Email Model System Marketer 2000 Driveway Flowmeter Control System Supplementary Control Systems for Liquid-measuring Systems (formerly flowmeter control systems)
Current 6/14G/10: ESPERA-WERKE Model ES 7001 Automatic Catchweighing Instrument 6 - Weighing instruments 6/14G - Automatic catchweighers
Cancelled 6/14D/11A: Ramsey Model 10-14-4 Belt Weighing Instrument 6 - Weighing instruments 6/14D - Belt weighers
Cancelled S421: Megabus Model SERVSTAT Control System for Fuel Dispensers for Motor Vehicles Supplementary Control Systems for Liquid-measuring Systems (formerly flowmeter control systems)
Current 6/18/17C: A & D Mercury Model OHT-600 Overhead-track Weighing Instrument 6 - Weighing instruments 6/18 - Overhead weighing instruments
Current 14/3/43: UAB Axioma Qalcosonic W1 Ultrasonic Water Meter 14 - Utility meters 14/3 - Water (utility) meters
Current S519: PEC Model PCS 220 Control System for Fuel Dispensers for Motor Vehicles Supplementary Control Systems for Liquid-measuring Systems (formerly flowmeter control systems)
Current 6/4D/392: Teraoka Model DIGI RM-5900 Weighing Instrument 6 - Weighing instruments 6/4D - Counter weighing instruments self-indicating and price-computing
Cancelled S129: Yamato Model EDI 500W Digital Indicator (Cancelled) Supplementary Digital Indicators
Current 6/4C/243: A & D Model EK-610i Weighing Instrument 6 - Weighing instruments 6/4C - Counter weighing instruments self-indicating
Interim P5/6B/229: Halo Go Model HG-MFD-001 Liquid-Measuring System 5 - Flowmeters 5/6B - Bulk flowmeters
Expired S220: Teraoka Seiko Model DS-410 Digital Indicator Supplementary Digital Indicators
Current 6/4C/275: Kosan Crisplant Model CUC-EX UFM Weighing Instrument 6 - Weighing instruments 6/4C - Counter weighing instruments self-indicating
Current 6/4C/321: CAS Model SWII-6CW Weighing Instrument 6 - Weighing instruments 6/4C - Counter weighing instruments self-indicating
Expired S320: Molen Model Univecs T/3000 Digital Indicator Supplementary Digital Indicators
Current 6/4C/304: Precia Molen Model X112-A Weighing Instrument 6 - Weighing instruments 6/4C - Counter weighing instruments self-indicating
Current 6/4C/324: Wedderburn Model WS213 Weighing Instrument 6 - Weighing instruments 6/4C - Counter weighing instruments self-indicating
Cancelled S403: Ranger Instruments Model 2100 Digital Indicator Supplementary Digital Indicators
Cancelled 6/4D/298: Teraoka Model Digi DPS-90 Weighing Instrument 6 - Weighing instruments 6/4D - Counter weighing instruments self-indicating and price-computing
Current S486: Mettler Toledo Model IND221 Digital Indicator Supplementary Digital Indicators
Current 6/4D/333: CAS Model CL 5000 P Weighing Instrument 6 - Weighing instruments 6/4D - Counter weighing instruments self-indicating and price-computing
Current S662: Fidelity Measurement Model AFM18 Digital Indicator Supplementary Digital Indicators
Current 6/4D/365: A&D Model HV15KRS Weighing Instrument 6 - Weighing instruments 6/4D - Counter weighing instruments self-indicating and price-computing
Current S758: Laumas Model WTAB-BR Digital Mass Indicator Supplementary Digital Indicators
Cancelled 6/2/100: Avery Dispensing Scale No 2028 6 - Weighing instruments 6/2 - Beam scales (refer also 6/1/-)
Cancelled S155: Kelba Model KA-250 Load Cell of 250 kg Capacity (Cancelled) Supplementary Load Cells
Cancelled 6/3/122: James Wedderburn 4-lb Even-balance Scale (Cancelled) 6 - Weighing instruments 6/3 - Counter scales
Expired S224: Precision Transducers Model LS1000 Load Cell Supplementary Load Cells
Cancelled 6/4A/123: Brecknell Protector Scale Model 73 of 20-lb Capacity (also known as Carnegie and Layton Model C730) 6 - Weighing instruments 6/4A - Counter weighing instruments semi-self-indicating
Current S333A: GWT Global Weighing PR 6201 and PR 6221 Series Load Cells Supplementary Load Cells
Cancelled 6/4C/17: Mettler P163 Weighing Instrument 6 - Weighing instruments 6/4C - Counter weighing instruments self-indicating
Current S444: CAS Model BSA-1t Load Cell Supplementary Load Cells
Cancelled 6/4C/48: Mettler Model PE 16 Weighing Instrument 6 - Weighing instruments 6/4C - Counter weighing instruments self-indicating
Current S560: ZEMIC Model BM14A-C3-25t-20B-SC Load Cell Supplementary Load Cells
Cancelled 6/4C/75A: Teraoka Seiko Model DS-640 Weighing Instrument 6 - Weighing instruments 6/4C - Counter weighing instruments self-indicating
Current PS580: (Interim Certificate) Intelligent POS Model Digital Data Assist Point of Sale (POS) System Supplementary Point of Sale Systems
Cancelled 6/4C/208: Teraoka Model Digi DS-470SS Weighing Instrument 6 - Weighing instruments 6/4C - Counter weighing instruments self-indicating

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