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ASTM D3104-99(2005)
Standard Test Method for Softening Point of Pitches (Mettler Softening Point Method)
6 стр.
Заменен
Печатное изданиеЭлектронный (pdf)
96.72 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
93.080.10 Road. Including road maintenance equipment and road construction equipment / Сооружение дорог. Включая оборудование для технического обслуживания дорог
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

Pitch does not go through a solid-liquid phase change when heated, and therefore does not have a true melting point. As the temperature is raised pitch gradually softens or becomes less viscous. For this reason, the determination of the softening point must be made by an arbitrary, but closely defined, method if the test values are to be reproducible.

This test method is useful in determining the consistency of pitches as one element in establishing the uniformity of shipments or sources of supply.

Область применения

1.1 This test method covers the determination of the softening point of pitches having softening points in the range from 50 to 180C by this test method, and gives results comparable to those obtained by Test Method D 2319 above 176F (80C).

1.2 The values stated in SI units are to be regarded as the standard.

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.

Ключевые слова:
Mettler; pitch; softening point