Specific Gravity - ASTM D792
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The ratio of material density (mass per unit volume) at 23°C to the density of gas-free distilled water at 23°C. Specific gravity can be converted to density (g/cm3) by multiplying specific gravity by 0.9975.
Two procedures are used for specific gravity testing.
| Method |
Description |
Calculation |
| A |
Testing in water |
(apparent mass in air) / (apparent mass in water) |
| B |
Testing in liquids other than water |
(apparent mass in air) * (specific gravity of liquid) / (apparent mass in liquid) |
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