標(biāo)準(zhǔn)編號:	GB/T 2951.41-2008
中文名稱:	電纜和光纜絕緣和護(hù)套材料通用試驗(yàn)方法 第41部分：聚乙烯和聚丙烯混合料專用試驗(yàn)方法 耐環(huán)境應(yīng)力開裂試驗(yàn) 熔體指數(shù)測量方法 直接燃燒法測量聚乙烯中碳黑和(或)礦物質(zhì)填料含量 熱重分析法(TGA)測量碳黑
英文名稱:	Common test methods for insulating and sheathing materials of electric and optical cables - Part 41: Methods specific to polyethylene and polypropylene compounds - Resistance to envi
中標(biāo)分類:	K13    電纜及其附件
行業(yè)分類:	GB    國家標(biāo)準(zhǔn)
ICS分類:	29.060 29.060    電線和電纜 29.060
發(fā)布機(jī)構(gòu):	中華人民共和國國家質(zhì)量監(jiān)督檢驗(yàn)檢疫總局 中國家標(biāo)準(zhǔn)化管理委員會
發(fā)布日期:	2008-6-26
實(shí)施日期:	2009-4-1
標(biāo)準(zhǔn)狀態(tài):	valid
替代舊標(biāo)準(zhǔn):	GB/T 2951.8-1997 GB/T2951.8-1997 電纜絕緣和護(hù)套材料通用試驗(yàn)方法 第4部分:聚乙烯和聚丙烯混合料專用試驗(yàn)方法 第1節(jié):耐環(huán)境應(yīng)力開裂試驗(yàn)--空氣熱老化后的卷繞試驗(yàn)--熔體指數(shù)測量方法--聚乙烯中碳黑和/或礦物質(zhì)填料含量的測量方法
翻譯語言:	英文
文件格式:	PDF
中文字符數(shù):	12000 字
翻譯價(jià)格(元):	720.0
交付時間:	付款后 1 個工作日

1 General 1.1 Scope This part of GB/T 2951 specifies the test methods to be used for testing polymeric insulating and sheathing materials of electric and optical fibre cables for power distribution and telecommunications, including cables used on ships and in offshore applications. These test methods apply specifically to PE and PP compounds, including cellular compounds and foam skin for insulation. 1.2 Normative References The following normative document contains provisions which, through reference in this text, constitute provisions of this part of GB/T 2951. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent edition of the normative document indicated below. For undated references, the latest edition of the normative document referred to applies. GB/T 2951.13-2008 Common Test Methods for Insulating and Sheathing Materials of Electric Cables and Optical Cables — Part 13: Measurement for Determining the Density — Water Absorption Tests — Shrinkage Test (IEC 60811-1-3:1993, IDT) ISO 18553:2002 Method for the Assessment of the Degree of Pigment or Carbon Black Dispersion in Polyolefin Pipes, Fittings and Compounds 2 Terms and Definitions For the purposes of this document, a distinction is made between low-density, medium-density and high-density PE as shown below:

Foreword III 1 General 1.1 Scope 1.2 Normative References 2 Terms and Definitions 3 Test Values 4 Applicability 5 Type Tests and Other Tests 6 Pre-conditioning 7 Median Value 8 Resistance to Environmental Stress Cracking 8.1 General 8.2 Apparatus 8.3 Preparation of the Test Sheets 8.4 Conditioning of the Test Sheets 8.5 Visual Examination of the Test Sheets 8.6 Test Procedure 8.7 Evaluation of Results 8.8 Summary of Test Conditions and Requirements for Procedures A and B 9 Wrapping Test After Thermal Ageing in Air 10 Measurement of the Melt Flow Index 10.1 General 10.2 Apparatus 10.3 Test Samples 10.4 Cleaning and Maintenance of the Apparatus 10.5 Method A 10.6 Method C 11 Carbon Black and/or Mineral Filler Content Measurement in Polyethylene — Direct Combustion Method 11.1 Sampling 11.2 Test Procedure 11.3 Expression of Results 12 Thermogravimetric Analysis of the Carbon Black Content in Polyolefine Compounds 12.1 Principle 12.2 Reagents 12.3 Apparatus 12.4 Procedure 13 Test for the Assessment of Carbon Black Dispersion in Polyethylene 13.1 General 13.2 Procedure 13.3 Expression of Results 13.4 Requirements Annex A (Informative) Tools and Reagents