ASTM D721 Standard Test Method for Oil Content of Petroleum Waxes
1. Scope
1.1 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.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are for information only.
NOTE 1 - With some types of waxes, of oil contents greater than 5%, there may be an incompatibility with MEK resulting in the formation of two liquid phases. If this occurs, the method is not applicable to the material under test.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
D740 Specification for Methyl Ethyl Ketone
D938 Test Method for Congealing Point of Petroleum Waxes, Including Petrolatum
D1078 Test Method for Distillation Range of Volatile Organic Liquids
D1218 Test Method for Refraction Index and Refractive Dispersion of Hydrocarbon Liquids
D1364 Test Method for Water in Volatile Solvents (Karl Fischer Reagent Titration Method)
D1613 Test Method for Acidity in Volatile Solvents and Chemical Intermediates Used in Paint, Varnish, Lacquer, and Related Products
E 1 Specification for ASTM Thermometers
E 128 Test Method for Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use
