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ASTM D612 is a test method for determining the oil content in paraffin wax and related petroleum waxes using a refractive index measurement.
Description of ASTM D612 (paraffin wax)
- Property measured: Oil content
- Material: Paraffin wax, microcrystalline wax, petroleum waxes
- Principle: Refractive index
- Result: Mass percent (%) oil
The presence of oil changes the refractive index of the wax, allowing the oil level to be quantified.