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ASTM D938-05
Standard Test Method for Congealing Point of Petroleum Waxes, Including Petrolatum
Стандартный метод определения точки застывания нефтяных парафинов, включая петролатум
3 стр.
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Разработчик:
Зарубежные/ASTM
ICS:
75.140 Waxes, bituminous materials and other petroleum products / Парафины, битумные материалы и другие нефтепродукты
Сборник (ASTM):
05.01 Petroleum Products, Liquid Fuels, and Lubricants (I): C1234–D3709 / Нефтепродукты, жидкое топливо и смазочные материалы (I): C1234–D3709
Тематика:
Petroleum
Описание
Значение и использование

Congealing point is a wax property that is of interest to many petroleum wax consumers. The procedure described here measures the temperature at which a sample being cooled develops a set or resistance to flow. At that temperature, the wax may be at or close to the solid state, or it may be semisolid and quite unctuous, depending on the composition of the wax or petrolatum being tested. In the case of petrolatums, congealing property is associated with the formation of a gel structure as the sample cools.

Область применения

1.1 This test method covers determination of the congealing point of petroleum waxes, including petrolatum.

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

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.

Note 1—This test method is an alternative to Test Method D 127. Results obtained are usually lower than the results obtained by Test Method D 127 - IP 133, the amount of the deviation varying with the nature of the petroleum wax.

Ключевые слова:
congealing point; petrolatum; petroleum waxes