ASTM D3775-2017 機織物經(jīng)紗密度和經(jīng)緯密度試驗方法 Standard Test Method for End (Warp) and Pick (Filling) Count of Woven Fabrics

1.1 This test method covers the measurement of end (warp) and pick (filling) count and is applicable to all types of woven fabrics. Note 1: Historically, the term fabric count has been used to describe the end and pick count of woven fabrics. The terms end count and pick count are replacing the term fabric count, to provide clarity. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.2.1 Throughout this document, there will be some instances in which the units do not convert 1:1. This is to acknowledge that this is a global document and that different parts of the world use different units of measurement. Organizations using the metric system wil report the count per 1 cm. Organizations using the English system will report the count per 1 in. 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 2: For a current test method for the wale and course count of weft knitted fabrics, refer to Test Method D8007. 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.