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GB/T 17686-2008 English PDF

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GB/T 17686-2008: Cotton fibre -- Determination of linear density -- Array method
Status: Obsolete

GB/T 17686: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 17686-2008English279 Add to Cart 3 days [Need to translate] Cotton fibre -- Determination of linear density -- Array method Obsolete GB/T 17686-2008
GB/T 17686-1999English319 Add to Cart 3 days [Need to translate] Cotton fibre--Determination of linear density--Array method Obsolete GB/T 17686-1999

PDF similar to GB/T 17686-2008


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Basic data

Standard ID GB/T 17686-2008 (GB/T17686-2008)
Description (Translated English) Cotton fibre -- Determination of linear density -- Array method
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard W10
Classification of International Standard 59.060.10
Word Count Estimation 7,777
Date of Issue 2008-06-17
Date of Implementation 2008-09-01
Older Standard (superseded by this standard) GB/T 17686-1999
Quoted Standard GB/T 6097; GB 6529; GB/T 8170; GB/T 13779
Regulation (derived from) National Standard Approval Announcement 2008 No.10 (Total No.123)
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 the method for determining the average linear density of cotton fiber with a permutation method. This standard applies to raw cotton, determination of linear density of sliver, etc., lap. Also applies to the determination of the length of the line density in the sample group.

GB/T 17686-2008: Cotton fibre -- Determination of linear density -- Array method

---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.
Cotton fibre. Determination of linear density. Array method ICS 59.060.10 W10 National Standards of People's Republic of China Replacing GB/T 17686-1999 Test method for linear density of cotton fiber Permutation method Posted 2008-06-17 2008-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 17686-1999 "cotton fiber linear density Array method." This standard compared with GB/T 17686-1999, the main contents modified as follows. --- The original standard equilibrium moisture regain to regain (1999 version 6.1; this version 6.1); --- In the original testing standard atmosphere is enhanced with secondary standard temperate atmosphere (1999 Edition 6.3; 6.3 edition) regulations; --- Increase the extraction and preparation of test specimens (see Chapter 7); --- Test procedure to adjust the original content of 7.1 to 7.2 in this edition; --- Modify the test report (1999 edition Chapter 10, Chapter 11 of this edition). Appendix A of this standard is an informative annex. This standard is proposed and managed by China Fiber Inspection Bureau. This standard by Shanghai Fiber Inspection is responsible for drafting. The main drafters of this standard. Sui Wah Ming, Li Ying. This standard was first published in 1999, this is the first revision. Test method for linear density of cotton fiber Permutation method

1 Scope

This standard specifies the method for determining the average linear density of cotton fiber by arrangement method. This standard applies to the determination of raw cotton, lap, etc. sliver linear density, linear density was measured for each sample length within the group also applies.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 6097 sampling cotton fiber test methods GB 6529 textiles conditioning and testing - Standard atmospheres GB/T 8170 numerical rounding rules GB/T 13779 Test method for length of cotton fiber comb plate method

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Yarn or fiber mass per unit length. 3.2 Represents a unit of linear density, mass number of grams per kilometer of yarn or fiber has. Principle 4 Previously divided into a number of fiber bundles weighing a known length of the group, and then arranged on a glass slide and count the number of its points to calculate each length Group of cotton fiber linear density of cotton fiber linear density and average.

5 device

5.1 Y121 comb chip length tester. 5.2 microscope or a projector. a magnification of 150 times to 200 times. 5.3 Balance. a) dividing the value ≤0.05mg; b) dividing the value ≤0.01mg. 5.4 slides, tweezers, pick a needle, glycerin or water. 5.5 counter.

6 test standard atmosphere

6.1 For the test sample is greater than the moisture regain moisture regain should be placed in 45 ℃ ~ 50 ℃ The humidity oven pre-treatment time was 0.5h.

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