ANSI/ASTM D6342-1998
聚氨酯生胶材料惯例:用近远红外光谱测量仪测定聚合物溶胶的羟基值

Practice for Polyurethane Raw Materials: Determining Hydroxyl Number of Polyols by Near Infrared (NIR) Spectroscopy

ANSI/ASTM D6342-1998 发布历史

This standard covers a practice for the determination of hydroxyl numbers of polyols using NIR spectroscopy. Definitions, terms, and calibration techniques are described. Procedures for selecting samples, and collecting and treating data for developing NIR calibrations are outlined. Criteria for building, evaluating, and validating the NIR calibration model are also described. Finally, the procedure for sample handling, data gathering and evaluation are described. The implementation of this standard requires that the NIR spectrometer has been installed in compliance with the manufacturer's specifications. 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 or similar ISO standard.

ANSI/ASTM D6342-1998由美国国家标准学会 US-ANSI 发布于 1998，并于 1999-02-10 实施。

ANSI/ASTM D6342-1998 在中国标准分类中归属于: G31 合成树脂、塑料基础标准与通用方法，在国际标准分类中归属于: 83.040.10 胶乳和生橡胶。

ANSI/ASTM D6342-1998的历代版本如下：

• 1998年 ANSI/ASTM D6342-1998 聚氨酯生胶材料惯例:用近远红外光谱测量仪测定聚合物溶胶的羟基值

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标准号

ANSI/ASTM D6342-1998

发布日期

1998年

实施日期

1999年02月10日

废止日期

无

中国标准分类号

G31

国际标准分类号

83.040.10

发布单位

US-ANSI

适用范围

This standard covers a practice for the determination of hydroxyl numbers of polyols using NIR spectroscopy. Definitions, terms, and calibration techniques are described. Procedures for selecting samples, and collecting and treating data for developing NIR calibrations are outlined. Criteria for building, evaluating, and validating the NIR calibration model are also described. Finally, the procedure for sample handling, data gathering and evaluation are described. The implementation of this standard requires that the NIR spectrometer has been installed in compliance with the manufacturer's specifications. 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 or similar ISO standard.