Legal Metrology
Pattern Approval

The Weights And Measures Act 1972 provides the legal basis for examining and approving
patterns/designs of measuring instruments suitable for use for trade and other legal purposes.

01 Examination

a) Assesment of the documentation.b) Assesment of the operation of the instrument against requirements (which are usually based on international recommendations published by OIML).c) Performance testing to ensure that the instrument performs as intended (i.e to within allowable maximum permissible errors) over a range of environmental and usage conditions specified in the requirements.

02 Regulated Measuring Instrument

List:
Liquid Capacity Measures
Linear Measures
Weights
Weighing Instruments
Beam Scales And Balances
Spring Balances And Scales
Dead-weight Machines
Platform Weighing Machines And Weighbridges
Crane Weighing Machines
Automatic Weighing Machines
Instruments For The Measurement Of Liquid Fuel And Lubricants
Instruments For The Measurement Of Alcoholic Liquor
Dispenser For The Measurement Of Liquefied Petroleum Gas
Time Recorders Used For Measuring Parking Timemeter
Time Recorders Used For Measuring Time
Water Vending Machines
Dispenser For Natural Gas
Road Tankers
Utility Meters (Energy Meters, Gas Meter And Water Meters)
Evidential Breath Analysers
Refrigerant Identifier
Vehicle Emission Device
Sphygmomanometer
Digital Luminance Meter
Smoke Meter
Stop Watch
Parking Meters
Counter Machines

03 Pre-packaged Products Regulation

Pre-packaged Product is defined as any commodity that is enclosed in a container or wrapped in any manner, and for which its quantity has been determined and indicated on its label prior to being offer for sale. The quantity of the product contained cannot be changed without the pre-package being opened or doing a perceptible modification. Once Pre-packaged Products Regulation is enforced under Weight and Measures Act 1972 by Ministry of Domestic Trade and Consumer Affairs, all products which fall under this category are required to comply with Average Quantity System (AQS) and no longer based on current practice which is based on Minimum Quantity System.

/ List of Pattern Approvals

From Year 2014 to 2023

This list includes descriptions of some of the most common items you can include in your construction costs. Usually, they are different from overhead and profit, although sometimes supervision can be included.

LIST OF PATTERN APPROVED INSTRUMENT2022