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.
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 15°C, subdivisions 0.5kg/m3, length 380mm, thermometer scale °C -20 to +65 (designation L), 0 to 85 (designation M) 20 to 105 (designation H).
Catalog No. | ASTM Thermohydrometer No. | Density, Range kg/m³ |
G-142-251-000-300HL | 300HL | 600 to 650 |
G-142-251-000-301HL | 301HL | 650 to 700 |
G-142-251-000-302HL | 302HL | 700 to 750 |
G-142-251-000-302HM | 302HM | 700 to 750 |
G-142-251-000-303HL | 303HL | 750 to 800 |
G-142-251-000-303HM | 303HM | 750 to 800 |
G-142-251-000-304HL | 304HL | 800 to 850 |
G-142-251-000-304HM | 304HM | 800 to 850 |
G-142-251-000-305HL | 305HL | 850 to 900 |
G-142-251-000-305HM | 305HM | 850 to 900 |
G-142-251-000-306HL | 306HL | 900 to 950 |
G-142-251-000-306HM | 306HM | 900 to 950 |
G-142-251-000-307HL | 307HL | 950 to 1000 |
G-142-251-000-307HH | 307HH | 950 to 1000 |
G-142-251-000-308HH | 308HH | 1000 to 1050 |
G-142-251-000-308HL | 308HL | 1000 to 1050 |
G-142-251-000-309HH | 309HH | 1050 to 1100 |
G-142-251-000-309HL | 309HL | 1050 to 1100 |
