SN/T 2640-2010 English PDF

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SN/T 2640-2010: Quantitative analysis of textiles containing hollow fibers. Percentage of number
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2640-2010	159	Add to Cart	3 days	Quantitative analysis of textiles containing hollow fibers. Percentage of number	Valid

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Basic data

Standard ID: SN/T 2640-2010 (SN/T2640-2010)
Description (Translated English): Quantitative analysis of textiles containing hollow fibers. Percentage of number
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: W04
Classification of International Standard: 59.060.20
Word Count Estimation: 6,627
Date of Issue: 2010-05-27
Date of Implementation: 2010-12-01
Quoted Standard: GB/T 8170; GB/T 14334-2006
Regulation (derived from): National Quality Inspection (2010) 290; industry standard filing Notice 2010 No. 10 (No. 130 overall)
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the method to use the micro projector various sectional shape of the hollow fibers and hollow fibers and non-root ratio hollow fiber measurement method. This standard applies to a variety of cross-sectional shape of the hollow fibers and hollow fibers and non-hollow fibers stick together samples.

SN/T 2640-2010: Quantitative analysis of textiles containing hollow fibers. Percentage of number

---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.
Quantitative analysis of textiles containing hollow fibers.Percentage of number People's Republic of China Entry-Exit Inspection and Quarantine Standards Quantitative analysis of hollow fiber The number ratio method Issued on. 2010-05-27 2010-12-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Shanghai Entry-Exit Inspection and Quarantine Bureau. The main drafters of this standard. Yang Juan, Wang Weihua, Wuxiong Ying, Zhou Jianzhong. Quantitative analysis of hollow fiber The number ratio method

1 Scope

This standard specifies the use of the projector microscopic method the number of various cross-sectional shape of the hollow fibers and hollow fibers and non-hollow fiber ratio Measurement method. This standard applies to various cross-sectional shape of the hollow fiber and mixed samples of the hollow fibers and non-hollow fibers.

2 Normative references

The following documents for the application of this document is essential, dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 8170 repair value expressed about the rules and limit values and judgment GB/T 14334-2006 chemical fiber staple sampling method

3 PRINCIPLE OF THE METHOD

A fiber cross-section in the bore called hollow fiber, hollow fiber according to the number of holes in its cross-section can be divided into single-hole, four-hole, seven Holes, abalone, 10-hole, etc., the fiber sample after mixing, cut with Hastelloy slicer whichever cross-section under a microscope magnified 100 times to 500 times View Police, according to its cross-sectional shape determined fiber non-hollow fibers, or single-hole, four-hole, seven holes, abalone, 10-hole hollow fiber, etc., and were counted, namely The number of various fibers, calculate the number of each ratio.

4 Reagents and materials

4.1 Microscopic Projector You should meet the following conditions. --- Stage equipped with the displacement means can move in two directions perpendicular to each other; and --- The projection objective and the eyepiece magnification of 100 to 500-fold. 4.2 Hastelloy slicer The fibers can be cut to about 20μm ~ 30μm thick slices. 4.3 liquid paraffin. 4.4 slide. 4.5 coverslip. 4.6 5% collodion solution.

5 Sample Preparation

5.1 Sampling The first laboratory sample tiles into fibrous layer of uniform thickness, substantially uniform distribution area from 16 randomly from both sides 32 points ......

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