D721 Oil and Solvent in Wax

Dor analysis of solvent extractable substances in petroleum waxes

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  1. General Details

    ASTM D721 – DIN 51571 – IP 158 – Oil Content of Petroleum Waxes

    This test method covers the determination of oil in petroleum waxes having a congealing point of 30°C (86°F) or higher as determined in accordance with Test Method D938, and containing not more than 15 % of oil.

    ASTM D3235 – Solvent Extractables in Petroleum Waxes

    This test method covers the determination of solvent extractable in petroleum waxes.


    Heating unit made in stainless steel composed by:

    • Double layer structure with heating chamber
    • Heating by irradiation bulb
    • Inspection window in polymethylmethacrylate with open/close knob
    • Collector for air distribution with 4 delivery position
    • Digital thermoregulator with PT100 Class A for temperature monitoring
    • Flowmeter with regulation valve
    • Air supply system with integrated 15 l/min compressor

    Cooling unit made in stainless steel composed by:

    • Double layer structure with insulating material
    • Internal stainless steel tank with plastic anti-condensing cover and 3 stand-by cover cap
    • Filling hole with cover cap and thermometer holder
    • Cooling connection with internal Nickel-plated serpentine
  2. Standards
    • ASTM D721
    • ASTM D3235
    • DIN 51571
    • IP 158
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