1.1本试验方法涵盖丙烯浓缩物中甲醇的测定，范围约为4至40 mg/kg（百万分之一重量）。 1.2本标准无意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。 注1:对于螺纹，这里没有直接可接受的SI当量。 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。 和中给出了具体的警告声明。 ====意义和用途====== 甲醇是丙烯中常见的杂质。它可能对使用丙烯作为原料的各种工艺产生有害影响。

1.1 This test method covers the determination of methanol in propylene concentrates in the range of approximately 4 to 40 mg/kg (parts-per-million by weight). 1.2 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. Note 1 here is no direct acceptable SI equivalent for screw threads. 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, and. ====== Significance And Use ====== Methanol is a common impurity in propylene. It can have a deleterious effect on various processes that use propylene as a feedstock.