- 您的位置:
- 中国标准在线服务网 >>
- 全部标准分类 >>
- 国外标准 >>
- ASTM >>
- ASTM D3774-18 Standard Test Method for Width of Textile Fabric
【国外标准】 Standard Test Method for Width of Textile Fabric
本网站 发布时间:
2024-02-28
开通会员免费在线看70000余条国内标准,赠送文本下载次数,单本最低仅合13.3元!还可享标准出版进度查询、定制跟踪推送、标准查新等超多特权!  
查看详情>>
标准简介
适用范围:
5.1 Option A procedures of Test Method D3774 for width are considered satisfactory for acceptance testing of commercial shipments because they are used extensively in the trade.5.1.1 In case of a dispute arising from differences in reported test values when using Test Method D3774 for acceptance testing of commercial shipments, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens which are as homogeneous as possible and which are from a lot of material of the type in question. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using Student's t-test for unpaired data and an acceptable probability level chosen by the two parties before testing is begun. If a bias is found, either its cause must be found and corrected or the purchaser and the supplier must agree to interpret future test results in the light of the known bias.1.1 This test method covers the measurement of the width of woven or knitted fabrics, usable width, or both. The method is applicable to full rolls, bolts of fabric, and short specimens removed from a roll or bolt. Unless otherwise specified, measurements shall include the selvages when present.1.2 The method offers two options:1.2.1 Option A—Full Roll or Bolt.1.2.2 Option B—Short Specimen Removed from Full Roll or Bolt.1.3 The values stated in either SI units or U.S. customary units are to be regarded as standard. The U.S. customary units may be approximate.1.4 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.1.5 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.
标准号:
ASTM D3774-18
标准名称:
Standard Test Method for Width of Textile Fabric
英文名称:
Standard Test Method for Width of Textile Fabric标准状态:
Active-
发布日期:
-
实施日期:
出版语种:
- 推荐标准
- 国家标准计划
- BS EN IEC 61753-071-02:2020+A1:2024 Fibre optic interconnecting devices and passive components. Performance standard
- 24/30492859 DC BS EN IEC 61753-1 Fibre optic interconnecting devices and passive components - Performance standard
- 24/30491443 DC standard
- 24/30489392 DC BS EN IEC 62358 Ferrite cores. Standard inductance factor for gapped cores and its tolerance
- BS ISO 19848:2024 - TC Tracked Changes. Ships and marine technology. Standard data for shipboard machinery and equipment
- BS ISO 19848:2024 Ships and marine technology. Standard data for shipboard machinery and equipment
- BS IEC 61360-7:2024 Standard data element types with associated classification scheme
- 24/30487130 DC BS EN 50566:2017/A2:2024 Product standard to demonstrate the compliance of wireless communication
- 24/30486472 DC - Product standard
- KS M ISO 4259-4 석유 및 관련 제품 — 측정 방법과 결과의 정밀도 — 제4부: 개별 실험실에서 표준 시험방법의 실행에 대한 ‘통계적 관리’ 상태를 확인하기 위한 통계적 관리도의 사용
- KS C IEC 61340-4-6 정전기학 — 제4-6부: 구체적 적용 분야에 대한 표준 시험방법 — 손목접지대
- KS C IEC 61340-4-7 정전기학 — 제4-7부: 구체적 적용 분야에 대한 표준 시험방법 — 이온화
- KS C IEC 61340-4-8 정전기학 — 제4-8부: 구체적 적용 분야에 대한 표준 시험방법 — ESD 차폐성 — 봉투
- 24/30485973 DC standard
- BS EN 14662-1:2023 - TC Tracked Changes. Ambient air quality. Standard method for measurement of benzene concentrations