ASTM D1016-2005e2
通过冻结点测定烃纯度的标准试验方法

Standard Test Method for Purity of Hydrocarbons from Freezing Points

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标准号

ASTM D1016-2005e2

发布日期

2005年

实施日期

废止日期

无

中国标准分类号

G16

国际标准分类号

71.080.01 (Organic chemicals in general)

发布单位

US-ASTM

适用范围

The experimental procedures and physical constants provided by this test method, when used in conjunction with Test Method D 1015, allow the determination of the purity of the material under test. A knowledge of the purity of these hydrocarbons is often needed to help control their manufacture and to determine their suitability for use as reagent chemicals or for conversion to other chemical intermediates or finished products.

1.1 This test method covers the sampling and determination of purity of essentially pure compounds for which the freezing points for zero impurity and cryoscopic constants are given. The compounds to which the test method is applicable are: ( Warning-Extremely flammable liquids and liquefied gases.)

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

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 Sections 1, 6, 8, and 10-26.Note 1

This test method covers systems in which the impurities form with the major component a substantially ideal or sufficiently dilute solution, and also systems which deviate from the ideal laws, provided that, in the latter case, the lowering of the freezing point as a function of the concentration is known for each most probable impurity in the given substance.