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Product Category Description:
Suitable for certification for use as a primary reference standard when determining the specific gravity of petroleum products. Approximate length: 380mm. Accuracy: ±1 scale division. The thermometer scale, from 0 to 150°F with 2°F subdivisions, is in the body. API Degrees = 141.5/(Specific Gravity at 60°/60°F) – 131.5.
Specific gravity at 60°/60°F is the ratio of the density of liquids at 60°F to the density of air-free distilled water at 60°F, with the water having a density of 1kg/L.
A certificate is provided to indicate instrument traceability to standards provided by the National Institute of Standards and Technology.
| Range, °API: | 45 to 90 | |
| Subdiv., °API: | 0.5 | |
VWR Long Form Hydrometers/Thermometers, API 50110