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ASTM D4864-14
Standard Test Method for Determination of Traces of Methanol in Propylene Concentrates by Gas Chromatography (Withdrawn 2016)
6 стр.
Отменен
Электронный (pdf)Печатное издание
96.72 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
71.080.10 Aliphatic hydrocarbons / Алифатические углеводороды
Сборник (ASTM):
05.02 Petroleum Products, Liquid Fuels, and Lubricants (II): D3711–D6122 / Нефтепродукты, жидкое топливо и смазочные материалы (II): D3711–D6122
Тематика:
Petroleum
Описание
Причина отменыThis test method covered the determination of methanol in propylene concentrates in the range of approximately 4 mg/kg to 40 mg/kg (parts-per-million by mass).

Formerly under the jurisdiction of Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants, this test method was withdrawn in December 2016. This standard is being withdrawn without replacement because of the availability of more reliable methods with better precision.

Значение и использование

5.1 Methanol is a common impurity in propylene concentrate. It can have a deleterious effect on various processes that use propylene concentrate as a feedstock.

Область применения

1.1 This test method covers the determination of methanol in propylene concentrates in the range of approximately 4 mg/kg to 40 mg/kg (parts-per-million by mass).

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

Note 1: There is no direct acceptable SI equivalent for screw threads.

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. Specific warning statements are given in 11.1.1, 11.2.1, and 12.11.

Ключевые слова:
gas chromatography; methanol; propylene