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
Cancelled P5/6B/60: Pipeline/Loading Rack System with Liquid Controls Model M60-N-2 Flowmeter 5 - Flowmeters 5/6B - Bulk flowmeters
Cancelled 6/10B/12: Toledo Self-indicating Portable Motor Truck Weighbridge and Variants 1 to 12 6 - Weighing instruments 6/10B - Heavy capacity weighing instruments self-indicating
Cancelled 8/101: Milkeeper Farm Milk Tank Model RS 400 8 - Milk tanks 8 - Milk tanks
Cancelled 5/6A/35: Gilbarco Driveway Flowmeters Models T171C and Others 5 - Flowmeters 5/6A - Fuel dispensers for motor vehicles
Cancelled 6/14B/3: Toledo Totalizing Hopper Weighing Instrument 6 - Weighing instruments 6/14B - Automatic weighing instruments except belt weighers
Current 8/39B: NDA Engineering Model FHT 93 MK1 Milk Tank 8 - Milk tanks 8 - Milk tanks
Cancelled 5/6A/7A: Gilbarco Salesmaker Driveway Flowmeter 5 - Flowmeters 5/6A - Fuel dispensers for motor vehicles
Cancelled 6/18/3A: Avery Model 4124 CLC Overhead-track Weighing Instrument 6 - Weighing instruments 6/18 - Overhead weighing instruments
Cancelled 5/6S/6: TechnoBar Model T6 Remote-storage Liquor Dispenser 5 - Flowmeters 5/6S - Remote-storage spirit (liquor) dispensers
Cancelled 5/6A/212: Gilbarco Model T910A6NP Lowline Mk3 Fuel Dispenser for Motor Vehicles 5 - Flowmeters 5/6A - Fuel dispensers for motor vehicles
Cancelled 6/18/29: Associated Scales Model TR-600 Weighing Instrument 6 - Weighing instruments 6/18 - Overhead weighing instruments
Current 14/3/2: Ningbo Model LXH-20E Water Meter 14 - Utility meters 14/3 - Water (utility) meters
Cancelled 5/6A/92A: PEC Model 1401P Fuel Dispenser for Motor Vehicles 5 - Flowmeters 5/6A - Fuel dispensers for motor vehicles
Cancelled 6/9C/274: Mettler Toledo Model WT300L Weighing Instrument 6 - Weighing instruments 6/9C - Weighing instruments self-indicating
Cancelled 13/2/1A: Mettler Toledo Model SpaceWeigh 2000 Automatic Catchweighing and Dimensional Measuring Instrument 13 - Dimensional measuring instruments 13/2 - Weighing and dimensional measuring instruments
Cancelled 10/1/15: Compac Model Premier P-LPG-DE LPG Driveway Flowmeter 10 - Gas flowmeters 10/1 - Liquefied gas fuel dispensers
Current 6/9C/311: (Interim Certificate) Ravas Model iForks 2000 Weighing Instrument 6 - Weighing instruments 6/9C - Weighing instruments self-indicating
Cancelled 4/10/00: Measuring Instrument to Determine the Density of Grain 4 - Volume (dispensers) 4/10 - Grain density measuring instruments
Current 5/6M/3: Gilbarco Model T923A8ND SK700-2 Fuel Dispenser for Motor Vehicles 5 - Flowmeters 5/6M - Multiple-fuel fuel dispensers
Current 6B/215: Toledo Model 840 - Converted by RCM Products 6 - Weighing instruments 6B - Converted weighing instruments
Current S107A: Veeder-Root Model VR2091 Driveway Flowmeter Indicator (Expired) Supplementary Calculator/Indicators for Liquid-measuring Systems (formerly flowmeter indicators)
Cancelled 5/6H/14: Acme Flowmeter with Liquid Controls M7 Meter 5 - Flowmeters 5/6H - Obsolete (now 5/6B/- was for vehicle-mounted flowmeters)
Current 6B/248: GEC-Avery Model 5452 (Converted) Weighing Instrument 6 - Weighing instruments 6B - Converted weighing instruments
Current S700: Total Control Systems Model TCS 3000 Calculator/Indicator for Liquid-measuring Systems Supplementary Calculator/Indicators for Liquid-measuring Systems (formerly flowmeter indicators)
Current 6/10B/68: CBH Model CS2001 Weighing Instrument 6 - Weighing instruments 6/10B - Heavy capacity weighing instruments self-indicating
Expired 6/4D/236A: Teraoka Seiko Model SM-60A Weighing Instrument 6 - Weighing instruments 6/4D - Counter weighing instruments self-indicating and price-computing
Current S198: Gilbarco Model Datapump Driveway Flowmeter Control System (Expired) Supplementary Control Systems for Liquid-measuring Systems (formerly flowmeter control systems)
Cancelled 6/14B/16: Mettler Toledo Model 9360 Class 0.2 Discontinuous Totalising Automatic Weighing Instrument 6 - Weighing instruments 6/14B - Automatic weighing instruments except belt weighers
Expired 6/10B/44B: Ultra-Hawke Model 9630 Weighing Instrument 6 - Weighing instruments 6/10B - Heavy capacity weighing instruments self-indicating
Expired S330: Natsoft Model P0SV2.00c Driveway Flowmeter Control System Supplementary Control Systems for Liquid-measuring Systems (formerly flowmeter control systems)
Current 6/14G/23: Digi Model LI-700 Automatic Catchweighing Instrument 6 - Weighing instruments 6/14G - Automatic catchweighers
Current P6/14B/25: (Interim Certificate) Kotzur Model BW 15-4400-I Discontinuous Totalising Automatic Weighing Instrument 6 - Weighing instruments 6/14B - Automatic weighing instruments except belt weighers
Current p15/1/8: (Interim Certificate) Foss Model Infratec NOVA Grain Protein Measuring Instrument 15 - Food analysing instruments 15/1 - Grain protein measuring instruments
Current S730: Wayne Fueling Systems Model Fusion 6000 Controller for Fuel Dispensers for Motor Vehicles Supplementary Control Systems for Liquid-measuring Systems (formerly flowmeter control systems)
Cancelled 6/4C/225: Ohaus Model CD-11 Weighing Instrument (Cancelled) 6 - Weighing instruments 6/4C - Counter weighing instruments self-indicating
Cancelled S169: Gedge Model GS1400 Digital Indicator (Cancelled) Supplementary Digital Indicators
Current 6/4C/257: Mettler Toledo Model DIVA Weighing Instrument 6 - Weighing instruments 6/4C - Counter weighing instruments self-indicating
Current 14/3/53: Endress+Hauser Promag W400 model Water Meter 14 - Utility meters 14/3 - Water (utility) meters
Cancelled S253A: Mettler Toledo Model 8530 Digital Indicator Supplementary Digital Indicators
Current 6/4C/286: CAS Model FW500-E30 Weighing Instrument 6 - Weighing instruments 6/4C - Counter weighing instruments self-indicating
Current 10/2/20: Alfons Haar Model PreciGas C400 Bulk LPG Flow-metering System 10 - Gas flowmeters 10/2 - Liquefied gas bulk flowmeters
Cancelled S352A: Avery Berkel Model L136 Digital Indicator Supplementary Digital Indicators
Current 6/4D/260A: CAS Model AP-1 Weighing Instrument 6 - Weighing instruments 6/4D - Counter weighing instruments self-indicating and price-computing
Current 14/3/57: Bermad Turbo-IR-M Model Water Meter 14 - Utility meters 14/3 - Water (utility) meters
Current S437: Marel Model M2200-Pxx Digital Indicator Supplementary Digital Indicators
Cancelled 6/4D/315: CAS Model TP-II Weighing Instrument 6 - Weighing instruments 6/4D - Counter weighing instruments self-indicating and price-computing
Current S537: Mettler Toledo Model IND331 Digital Indicator Supplementary Digital Indicators
Current 6/4D/347: Teraoka Model DS-781B Weighing Instrument 6 - Weighing instruments 6/4D - Counter weighing instruments self-indicating and price-computing
Current S699: Marel Model MU1 Digital Indicator System Supplementary Digital Indicators
Current 6/4D/378: Ishida Model UNI-3 L2EV Weighing Instrument 6 - Weighing instruments 6/4D - Counter weighing instruments self-indicating and price-computing

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