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ASTM D2780-92(2007)

Отменен
Standard Test Method for Solubility of Fixed Gases in Liquids (Withdrawn 2010) — 6 стр.
Причина отмены

This test method covers the determination of the solubility of fixed gases in liquids. It is suitable for gases and liquids that do not react with each other and are compatible with borosilicate glass, mercury, stainless steel, PTFE (polytetrafluoroethylene), and FPM (vinylidene fluoride-hexafluoro propylene copolymer) under the conditions of the test. This test method also covers the determination of the concentration of fixed gases in solutions which are not saturated with the gas.

Formerly under the jurisdiction of Committee D02 on Petroleum Products and Lubricants, this test method was withdrawn in October 2010 due to its use of large amounts of mercury.

Значение и использование

The solubility of fixed gases in liquids is an important engineering parameter in the design of hydraulic systems. It is a measure of the amount of gas which can be released from solution when a system undergoes changes in pressure and temperature. Theoretical considerations permit approximate values of gas solubility to be computed with reasonable accuracy. In this test method, dissolved gases are separated physically from a liquid and measured volumetrically. The test method permits subsequent analysis of separated gases by any appropriate method.

Область применения

1.1 This test method covers the determination of the solubility of fixed gases in liquids. It is suitable for gases and liquids that do not react with each other and are compatible with borosilicate glass, mercury, stainless steel, PTFE (polytetrafluoroethylene), and FPM (vinylidene fluoride-hexafluoro propylene copolymer) under the conditions of the test. This test method also covers the determination of the concentration of fixed gases in solutions which are not saturated with the gas.

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. For specific hazard statements see 6.1, 6.2, 8.3, 8.4.2, and 9.3.

1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.

ICS
71.040.40 Chemical. Including analysis of gases and surface chemical analysis / Химический анализ. Включая анализ газов
Сборник ASTM
05.01 Petroleum Products, Liquid Fuels, and Lubricants (I): C1234–D3709 / Нефтепродукты, жидкое топливо и смазочные материалы (I): C1234–D3709
Тематика
Petroleum