ANSI/ASTM D4661-1998 聚氨酯原材料试验方法.异氰酸酯中氯化物总含量的测定

标准号：ANSI/ASTM D4661-1998
中文标准名称：聚氨酯原材料试验方法.异氰酸酯中氯化物总含量的测定
英文标准名称：Polyurethane-Isocyanate Raw Materials, Determination of Total Chlorine, Method for Testing (08.03)
标准类型：G31
发布日期：1999/12/31 12:00:00
实施日期：1998/10/13 12:00:00
中国标准分类号：G31
国际标准分类号：83.080.10
适用范围： These test methods determine the total chlorine content of aromatic isocyanates used as polyurethane raw materials. The difference between the total chlorine content and the hydrolyzable chlorine content (see Test Method D 4663) is a measure of the amount of o-dichlorobenzene and other ring-substituted chlorinated products that are present. Both procedures are applicable to a variety of organic compounds but the amount of sample used may have to be varied. (See Note 1.) The values stated in SI units are to be regarded as the standard. The values given in brackets 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. Note 1 -There is no equivalent ISO standard.