ASTM D5442-17
采用气相色谱法分析石油蜡的标准试验方法
Standard Test Method for Analysis of Petroleum Waxes by Gas Chromatography
ASTM D5442-17 中，可能用到以下仪器设备
- 标准号
- ASTM D5442-17
- 发布
- 2017年
- 发布单位
- 美国材料与试验协会
- 替代标准
- ASTM D5442-17(2021)
- 当前最新
- ASTM D5442-17(2021)
- 引用标准
- ASTM D4307 ASTM D4626 ASTM D721 ASTM E260 ASTM E355
- 适用范围
-
5.1x00a0;The determination of the carbon number distribution of petroleum waxes and the normal and non-normal hydrocarbons in each can be used for control of production processes as well as a guide to performance in many end uses.
5.2x00a0;Data resulting from this test method are particularly useful in evaluating petroleum waxes for use in rubber formulations.
1.1x00a0;This test method covers the quantitative determination of the carbon number distribution of petroleum waxes in the range from n-C17 through n-C44 by gas chromatography using internal standardization. In addition, the content of normal and non-normal hydrocarbons for each carbon number is also determined. Material with a carbon number above n -C44 is determined by its difference from 1008201;% by mass and reported as C45+.
1.2x00a0;This test method is applicable to petroleum derived waxes, including blends of waxes. This test method is not applicable to oxygenated waxes, such as synthetic polyethylene glycols (for example, Carbowax2), or natural products such as beeswax or carnauba.
1.3x00a0;This test method is not directly applicable to waxes with oil content greater than 108201;% as determined by Test Method D721.
1.4x00a0;The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5x00a0;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 consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.6x00a0;This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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