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历史 ASTM D4423-00(2006)
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Standard Test Method for Determination of Carbonyls In C<inf>4</inf> Hydrocarbons 测定C<inf>4</inf>碳氢化合物中羰基的标准试验方法
发布日期: 2006-07-01
1.1本试验方法涵盖C中羰基(酮和醛)的测定 4. 碳氢化合物。本试验方法在聚合级1,3-丁二烯上进行了试验。 1.2本试验方法的适用范围为0至50 mg/kg羰基(以乙醛计)。 1.3其他C 4. 除聚合级1,3-丁二烯外,还可以使用相同的测试方法测试碳氢化合物及其混合物。然而,本试验方法的精度部分仅涵盖中列出的适用范围内的羰基,如聚合级1,3-丁二烯中所示。 1.4以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 本标准并非旨在解决与其使用相关的所有安全问题(如有)。本标准的用户有责任在使用前制定适当的安全和健康实践,并确定监管限制的适用性。 ====意义和用途====== 有必要测定聚合级1,3-丁二烯的羰基含量,因为在某些聚合反应中,羰基的存在超过一定量可能会对聚合物性质或反应本身或两者产生有害影响。
1.1 This test method covers the determination of carbonyls (ketones and aldehydes) in C 4 hydrocarbons. This test method was tested on polymerization-grade 1,3-butadiene. 1.2 The applicable range for this test method is 0 to 50 mg/kg carbonyls calculated as acetaldehyde. 1.3 Other C 4 hydrocarbons and their mixtures besides polymerization-grade 1,3-butadiene could be tested using this same test method. However, the precision section of this test method covers only carbonyls in applicable range as listed in, as found in polymerization-grade 1,3-butadiene. 1.4 The values stated in SI units are to be regarded as the standard. The values given 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. ====== Significance And Use ====== The determination of the carbonyl content of polymerization-grade 1,3-butadiene is necessary, since in some polymerization reactions, the presence of carbonyls in excess over some specified amount can have a deleterious effect upon the polymer properties or the reaction itself, or both.
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归口单位: D02.D0.04
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