GB/T 7689.2-2013 English PDFUS$114.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 7689.2-2013: Reinforcements -- Test method for woven fabrics -- Part 2: Determination of number of yarns per unit length of warp and weft Status: Valid GB/T 7689.2: Historical versions
Basic dataStandard ID: GB/T 7689.2-2013 (GB/T7689.2-2013)Description (Translated English): Reinforcements -- Test method for woven fabrics -- Part 2: Determination of number of yarns per unit length of warp and weft Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: Q36 Classification of International Standard: 59.100.10 Word Count Estimation: 6,657 Older Standard (superseded by this standard): GB/T 7689.2-2001 Adopted Standard: ISO 4602-2010; IDT Regulation (derived from): National Standards Bulletin No. 18 of 2013 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies: woven fabric warp and weft density two measurement methods. This standard applies to: glass fiber, carbon fiber, Kevlar and other reinforcing fibers woven reinforced woven fabric. GB/T 7689.2-2013: Reinforcements -- Test method for woven fabrics -- Part 2: Determination of number of yarns per unit length of warp and weft---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Reinforcements Test method for woven fabrics Part 2. Determination of number of yarns per unit length of warp and weft ICS 59.100.10 Q36 National Standards of People's Republic of China Replacing GB/T 7689.2-2001 Test method for woven fabrics reinforced Part 2. The determination of weft density Part 2. Determinationofnumberofyarnsperunitlengthofwarpandweft (ISO 4602.2010, Reinforcements-Wovenfabrics- Determinationofnumberofyarnsperunitlengthofwarpandweft, IDT) Issued on. 2013-09-18 2014-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordGB/T 7689 "Test method for woven fabrics reinforced" is divided into five sections. --- Part 1. Determination of thickness; --- Part 2. warp, weft density measurement; --- Part 3. Determination of width and length; --- Part 4. Determination of bending stiffness; --- Part 5. Determination of breaking glass fiber tensile strength and elongation. This section GB/T 27689 Part of. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 7689.2-2001 "Enhanced Part 2 Test methods for woven fabrics. warp, weft density determination", and GB/T 7689.2-2001 compared to, in addition to editorial changes outside the main technical changes are as follows. --- Remove the "reference standards" and "definition" two chapters (see the 2001 version of Chapter 2, Section 3); --- Increase the method "based on a fixed number of yarn root, measure the distance between the head and tail of yarn" (see Chapter 2); --- Increased schematic fabric analysis mirrors (see Section 3.2, Figure 1); --- A number of measurements per unit of product or laboratory sample from five to four (see 5.1.5,5.2.5); --- "Accurate to the decimal point after the first" to "take three significant figures" (see 6.3); --- Added "precision" chapter (see Chapter 7). This section uses the translation method identical with ISO 4602.2010 "for woven fabric per unit length of warp and weft yarn measuring the number of Set ", made the following editorial changes. --- Modify the standard name. This part of the National Standardization Technical Committee fiberglass (SAC/TC245) centralized. This section is responsible for drafting. Nanjing Fiberglass Research and Design Institute Limited, the national glass fiber product quality supervision and inspection center. The main drafters of this section. Madan, Xu Min, Wang Yumei, Chen Shang, Shi Zhuo, Xu Qi. This standard replaces the standards previously issued as follows. --- GB/T 7689.2-1987, GB/T 7689.2-2001. Test method for woven fabrics reinforced Part 2. The determination of weft density1 ScopeGB/T 7689 provisions of this part of the woven fabric warp and weft density of the two measurements. This method applies to glass fiber, carbon fiber, aramid, and other reinforcing fibers woven into the reinforcing woven fabric. Principle 2 Use appropriate thread count means the unit of measurement of length in the warp and weft yarns of the number. A and B are two methods. Method A, Based on the number of yarn from the fixed measuring head and tail between the yarns; Method B, based on a fixed length, measuring the number of the yarn length. through Often by the stakeholders or the material specification selection method of measurement.3 Instrument3.1 feet, the scale of millimeters. 3.2 yarns counter, suitable amplifying devices, such as fabric microscopy analysis (Figure 1) or the formula reciprocating mirror fabric density. 3.3 needle, yarn separated when needed. Explanation. 1 --- magnifier (typically at a magnification of 7 times to 10 times); 2 --- window (typically a size of 10mm ~ 30mm). Analysis schematic view mirror 1 fabric4 test areaSample test area should be free of creases or deformation. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 7689.2-2013_English be delivered?Answer: Upon your order, we will start to translate GB/T 7689.2-2013_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 7689.2-2013_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 7689.2-2013_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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