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API Gravity Hydrometers

ASTM Hydrometers and Thermohydrometers For density, relative density (specific gravity) or API gravity determination of crude petroleum, liquid petroleum products and mixtures of petroleum and non-petroleum products. For density of LPG and light hydrocarbons refer to K26150. Calibrated hydrometers and thermohydrometers are available from Koehler with an ISO/IEC 17025 and ANSI/NCSL Z-540-1 Report of Calibration. […]

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ASTM Hydrometers and Thermohydrometers
For density, relative density (specific gravity) or API gravity determination of crude petroleum, liquid petroleum products and mixtures of petroleum and non-petroleum products. For density of LPG and light hydrocarbons refer to K26150.

Calibrated hydrometers and thermohydrometers are available from Koehler with an ISO/IEC 17025 and ANSI/NCSL Z-540-1 Report of Calibration.

When inquiring about calibrated hydrometers and thermohydrometers, please refer to the catalog number for the corresponding hydrometer or thermohydrometer and replace the middle three zeros in the catalog number with 004. Example: 251-000-01H API Gravity Hydrometer would be 251-004-01H Certified API Gravity Hydrometer.

Specifications
Conforming to the specifications of: ASTM E100

Applicable Test Method Standards
ASTM D287, D1298, D6074, D6158; API MPMS Chapter 9.1; IP 160; ISO 3675; DIN 51757

Standard temperature 60°F,subdivisions 0.1° API, length 330mm

Catalog No.

ASTM Hydrometer No.

Nominal API Gravity Range, deg.

G-142-251-000-01H

1H

-1 to +11

G-142-251-000-02H

2H

9 to 21

G-142-251-000-03H

3H

19 to 31

G-142-251-000-04H

4H

29 to 41

G-142-251-000-05H

5H

39 to 51

G-142-251-000-06H

6H

49 to 61

G-142-251-000-07H

7H

59 to 71

G-142-251-000-08H

8H

69 to 81

G-142-251-000-09H

9H

79 to 91

G-142-251-000-10H

10H

89 to 101

G-142-251-000-21H

21H

0 to 6

G-142-251-000-22H

22H

5 to 11

G-142-251-000-23H

23H

10 to 16

G-142-251-000-24H

24H

15 to 21

G-142-251-000-25H

25H

20 to 26

G-142-251-000-26H

26H

25 to 31

G-142-251-000-27H

27H

30 to 36

G-142-251-000-28H

28H

35 to 41

G-142-251-000-29H

29H

40 to 46

G-142-251-000-30H

30H

45 to 51

G-142-251-000-31H

31H

50 to 56

G-142-251-000-32H

32H

55 to 61

G-142-251-000-33H

33H

60 to 66

G-142-251-000-34H

34H

65 to 71

G-142-251-000-35H

35H

70 to 76

G-142-251-000-36H

36H

75 to 81

G-142-251-000-37H

37H

80 to 86

G-142-251-000-38H

38H

85 to 91

G-142-251-000-39H

39H

90 to 96

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