ASTM D1465 Standard Test Method for Blocking and Picking Points of Petroleum Wax
1. Scope
1.1 This test method covers the determination of the blocking point and picking point of petroleum wax.
1.2 WARNING - Mercury has been designated by many regulatory agencies as a hazardous material that can cause central nervous system, kidney and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. Users should be aware that selling mercury and/or mercury containing products into your state or country may be prohibited by law.
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information only.
1.4 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:
D87 Test Method for Melting Point of Petroleum Wax (Cooling Curve)
D938 Test Method for Congealing Point of Petroleum Waxes, Including Petrolatum
D2423 Test Method for Surface Wax on Waxed Paper or Paperboard
E1 Specification for ASTM Liquid-in-Glass Thermometers
3. Terminology
3.1 Definitions:
3.1.1 wax blocking point - the lowest temperature at which film disruption occurs across 50 % of the waxed paper surface when the test strips are separated.
3.1.2 wax picking point - the temperature at which the first film disruption occurs on the waxed paper when test strips are separated.
