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 S694: (Interim Certificate) Retail Realm Model Retail Utilities Point of Sale (POS) System Supplementary Point of Sale Systems
Expired 6/4D/275: lshida Model AC-1000E Weighing Instrument 6 - Weighing instruments 6/4D - Counter weighing instruments self-indicating and price-computing
Grandfathered 14/2/163: Itron Model ACE 3000 Class 1 Electricity Meter (GRANDFATHERED) 14 - Utility meters 14/2 - Electricity (utility) meters
Cancelled S189A: Acme Model EPU 100 Flowmeter Pulse Generator (Cancelled) Supplementary Unspecified (not listed elsewhere)
Cancelled 6/5/104: Dayton Model 40 Octagon Spring Balance 6 - Weighing instruments 6/5 - Counter machines freely-suspended
Grandfathered 14/2/175: Zhuhai Pilot Model PMAC 735 Class 1 Electricity Meter (GRANDFATHERED) 14 - Utility meters 14/2 - Electricity (utility) meters
Expired S292: Scale Components Model 20035 Load Cell Protection Device Supplementary Unspecified (not listed elsewhere)
Cancelled 6/9A/117: Avery 4802 DBX Heavy-duty Hopper Scale 6 - Weighing instruments 6/9A - Platform weighing instruments non-self-indicating
Cancelled 14/2/4: Landis & Gyr Model CM170xf6 Electricity Meter 14 - Utility meters 14/2 - Electricity (utility) meters
Current S691: Gilbarco SIP Model M11128 Pulse Generator for use in Flowmetering Systems Supplementary Unspecified (not listed elsewhere)
Cancelled 6/9C/17: Avery 3202 CLE Platform Weighing Machine and Variant 1 6 - Weighing instruments 6/9C - Weighing instruments self-indicating
Current 14/2/69: Holley Metering Model DTS541 Class 1 Electricity Meter 14 - Utility meters 14/2 - Electricity (utility) meters
Cancelled 5/6B/104: Wayne-Smith Model T6 Flowmeter 5 - Flowmeters 5/6B - Bulk flowmeters
Cancelled 6/9C/62: Streeter Amet Quantomatic 7000 Platform Weighing Instrument 6 - Weighing instruments 6/9C - Weighing instruments self-indicating
Cancelled 5/6B/47: Brooks B-40 DB Flowmeter 5 - Flowmeters 5/6B - Bulk flowmeters
Cancelled 6/9C/96A: GEC Avery Model 3750 Weighing Instrument 6 - Weighing instruments 6/9C - Weighing instruments self-indicating
Current LM 6/14H/1: Central Weighing Model Supaweigh 4000 Road Vehicle Weighing-In-Motion Instrument Legal measuring instruments LM - Legal measuring instruments
Expired 5/6B/78A: Liquid Controls Model MSA-75-C-1 Bulk Flowmetering System 5 - Flowmeters 5/6B - Bulk flowmeters
Expired 6/9C/201: Avery Model 5802 Weighing Instrument 6 - Weighing instruments 6/9C - Weighing instruments self-indicating
Expired 8/33A: APV Model H Farm Milk Tank 8 - Milk tanks 8 - Milk tanks
Current 5/6B/213: TCS Model 682-15-SP Liquid-measuring System 5 - Flowmeters 5/6B - Bulk flowmeters
Expired 6/9C/237: Teraoka Seiko Model DS-570 Weighing Instrument 6 - Weighing instruments 6/9C - Weighing instruments self-indicating
Expired 8/59: Mueller Model OE 1600 Milk Tank 8 - Milk tanks 8 - Milk tanks
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)

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