ANSI/ASTM D4876-1998 聚氨酯原料试验方法:原油或改性的异氰酸酯酸度的测定(08.03)

标准号：ANSI/ASTM D4876-1998
中文标准名称：聚氨酯原料试验方法:原油或改性的异氰酸酯酸度的测定(08.03)
英文标准名称：Method for Testing Polyurethane Raw Materials: Determination of Acidity of Crude or Modified Isocyanates (08.03)
标准类型：G31
发布日期：1999/12/31 12:00:00
实施日期：1999/2/10 12:00:00
中国标准分类号：G31
国际标准分类号：83.040.30;83.080.20
适用范围：This test method determines the total acidity, expressed as HCl, of crude or modified isocyanates. The test method is applicable to products derived from toluene di iso cyanate, methylene-bis-(4-phenyl iso cyanate), and polymethylene polyphenyl iso cyanates. (See Note 1.) The values stated in SI units are to be regarded as the standard. This standard does not purport to address all of the safety problems, 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.