ANSI/ASTM D4890-1998 聚氨酯原料测试方法:测定多元醇加纳尔和阿尔法颜色(08.03)

标准号：ANSI/ASTM D4890-1998
中文标准名称：聚氨酯原料测试方法:测定多元醇加纳尔和阿尔法颜色(08.03)
英文标准名称：Test Methods for Polyurethane Raw Materials: Determination of Gardner and Alpha Color of Polyols (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：83.040.30;83.080.20
适用范围：These test methods measure visually the color of clear polyester and polyether liquids. They apply only to materials whose colors have light-absorption characteristics similar to those of the standards. An alternative method is Test Method D 1209 (see ). 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 1Although Test Method A of these test methods and ISO 4630-1:2004 differ in some details, data obtained using either are technically equivalent. Although Test Method B of these test methods and ISO 6271-1981 differ in some details, data obtained using either are technically equivalent.