Categories of Measuring Instruments

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The table below shows the measuring instrument categories that are included in the OIML-CS, along with the corresponding OIML Recommendations. It also shows the Scheme (A or B) for each measuring instrument category and the transition date from Scheme B to Scheme A.

Measuring Instrument Category
Recommendation Number

Scheme

A             B

Transition from Scheme B to Scheme A
Sphygmomanometer
R 16
X

1 January 2021
Taximeters
R 21
X
1 January 2021
Material Measures of Length
R 35
X

1 January 2021
Active electrical energy meters
R 46
X

Water meters
R 49
X

Continuous totalizers
R 50
X
1 January 2021
Automatic catchweighers
R 51
X

Sound Level Meters
R 58
X

1 January 2021
Moisture meters for cereal grains and oilseeds
R 59
X

1 January 2021
Load cells
R 60
X
Automatic gravimetric filling instruments
R 61
X
1 July 2020
Heat meters
R 75
X
1 January 2021
Non-automatic weighing instruments
R 76
X
Cryogenic Liquids
R 81
X

1 January 2021
Level gauges for stationary storage tanks
R 85
X
1 July 2020
Integrating-averaging Sound Level Meters
R 88
X

1 January 2021
Focimeters
R 93
X

1 January 2021
Vehicle exhaust emissions
R 99
X
1 January 2021
Sound Calibrators
R 102
X

1 January 2021
Pure-tone Audiometers
R 104
X

1 January 2021
Automatic rail-weighbridges
R 106
X
1 January 2021
Discontinuous totalizers
R 107
X
1 January 2021
Pressure Balances
R 110
X

1 January 2021
Liquids other than water
R 117
X

Speech Audiometry
R 122
X

1 January 2021
Evidential breath analyzers
R 126
X
1 January 2021
Ergometers for foot crank work
R 128
X

1 January 2021
Multi-dimensional measuring instruments
R 129
X
1 July 2020
Liquid-in-glass thermometers
R 133
X

1 January 2021
Weighing road vehicles in motion
R 134
X
1 January 2021
Areas of Leather
R 136
X

1 January 2021
Gas meters
R 137
X

Compressed gaseous fuel systems for vehicles
R 139
X
1 January 2021
Continuous measurement of SO2 in stationary source emissions
R 143
X

1 January 2021
Continuous measurement of CO, NOx in stationary source emissions
R 144
X

1 January 2021
Ophthalmic instruments – Impression and applanation tonometers
R 145
X

1 January 2021
Protein measuring instruments for cereal grains and oilseeds
R 146
X

1 January 2021

 

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