Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM D4672-18
• Năm ban hành / Publication date: 2018
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Standard Test Method for Polyurethane Raw Materials: Determination of Water Content of Polyols
• Chỉ số phân loại Quốc tế (ICS) / By field: 83.040.30 - Vật liệu phụ và phụ gia cho chất dẻo
• Số trang / Page: 3

Phạm vi áp dụng / Scope of standard

5.1 This test method is suitable for quality control, as a specification test, and for research. The water content of a polyol is important since isocyanates react with water.

1.1 This test method measures water content of polyols and many other organic compounds.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

Note 1: This test method is equivalent to ISO 14897.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.