Quyết định 870-QĐ/TĐC năm 1997 ban hành danh mục phương tiện đo phải được kiểm định Nhà nước do Bộ trưởng Bộ Khoa hoc, công nghệ và môi trường ban hành

THE MINISTRY OF SCIENCE, TECHNOLOGY AND ENVIRONMENT
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SOCIALIST REPUBLIC OF VIET NAM
Independence - Freedom - Happiness
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No. 870/QD-TDC

Hanoi, July 10, 1997

FOR THE MINISTER OF SCIENCE, TECHNOLOGY AND ENVIRONMENT
VICE MINISTER




Chu Hao

Measure

Code number

Measuring devices

Inspection regime

Length

11

Straight ruler

Pre-use

12

Tape measure

Pre-use

13

Taximeter

Once every 6 months

Weight

21

Analytical balance, technical balance

Once a year

22

Common scales:

- Yard scale, roberval scale...

Once a year

- Spring balance:

+ Under 50 kg

Pre-use

+ Over 50 kg

Once a year

23

Car bridge scale

Once a year

24

Wagon bridge scale

Once every 2 years

25

Over-load scale

Once a year

26

Luggage scale

Once a year

27

Postal scale

Once a year

28

Conveyor scale

Once a year

Capacity

31

Common acity measuring devices:

+ Up to 20 liters

Pre-use

+ Between 20 and 500 liters

Once a year

32

Measuring tank:

+ Up to 400 m3

Once every 2 years

+ Over 400 m3

Once every 5 years

33

Tank car

Once a year

34

Petrol transport ferryboat

Once a year

35

Petrol measuring device

Once a year

36

Water meter

Once every 2 years

37

Petrol gauge

Once a year

38

Liquid flow-meter

Once a year

39*

Gas flow-meter

Once a year

Pressure

41

Manometer

Once a year

42

Blood pressure meter

Once a year

Temperature

51

Thermometer for liquid glass

Pre-use

52

Medical thermometer

Pre-use

Chemistry, Physics

61

Device for measuring moisture in cereals

Once every 2 years

62

pH gauge

Once every 2 years

63*

Gas analytical device (for CO, CO2, SO2..)

Once every 2 years

64*

Device for measuring content of harmful substances in water (Cd, Hg,..)

Once every 2 years

Electricity, electromagnetism

71

One-phase electric meter

Once every 5 years

72

Three-phase electric meter

Once every 2 years

73

Measuring converter

Once every 5 years

74

Measuring transformer

Once every 5 years

75

Megomet, Teromet

Once a year

76*

Electro-cardiograph

Once every 2 years

77*

Electroencephalograph

Once every 2 years

78*

Supersonic machine

Once every 2 years

Radiation

81*

Ray treatment machine

Once a year

82*

X-ray machine

Once a year