SN/T 1512: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 1512-2011 | English | 479 |
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Method of inspection for import and export cotton. HVI test method
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SN/T 1512-2011
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| SN/T 1512-2005 | English | 439 |
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Import and export of cotton testing methods. HVI measurements
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SN/T 1512-2005
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PDF similar to SN/T 1512-2011
Basic data | Standard ID | SN/T 1512-2011 (SN/T1512-2011) | | Description (Translated English) | Method of inspection for import and export cotton. HVI test method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | W10 | | Classification of International Standard | 590.60.10 | | Word Count Estimation | 12,144 | | Date of Issue | 2011-05-31 | | Date of Implementation | 2011-12-01 | | Older Standard (superseded by this standard) | SN/T 1512-2005 | | Quoted Standard | SN/T 0775; ASTM D3025; ISO 139 | | Regulation (derived from) | National-Quality-Inspection-accreditation (2011) 291 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the tester with a large capacity (High volume instrument, HVI) testing and export of cotton micronaire, length and uniformity, breaking strength and elongation, colors, test methods and technical requirements impurities. This standard applies to the import and export upland cotton and other loose cotton fiber testing, staple cotton available for implementation. | SN/T 1512-2011: Method of inspection for import and export cotton. HVI test 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.
Method of inspection for import and export cotton.HVI test method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Importers HVI cotton testing methods Test Method
Issued on. 2011-05-31
2011-12-01 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.
Instead of the standard SN/T 1512-2005 "Import and Export Inspection method HVI cotton measurement."
This standard SN/T 1512-2005 compared to the main changes are as follows.
1. Delete the "Normative references" in reference to the standard GB 1103, GB 6097; "GB 6529" replaced by a direct reference to "ISO 139".
2. Delete "Definitions and terminology" in the "span length", "fiber quantity" because the novel HVI use of "upper half mean length", and the text
It did not involve "the number of fibers."
3. references and terminology of individual normative regulate. Such as. Delete "span length", "the number of fiber" and other definition. "micronaire
micronairereading "norms of interpretation as" a certain amount of cotton fiber micronaire micronaire under specified conditions, a measure of permeability to
Micronaire scale representation. "; To delete" elongation at break elongationatbreak "in" "indicate the percentage (3.2mm) gauge length." To 1/8
4. The original standard "sampling" in the detailed sampling methods and sampling requirements deleted.
5. "raw cotton color", "impurities" in the "test specimen to test every time" to "both sides of the test specimen once each test."
6. Remove the "7.10", "7.11."
7. Increase "8 Reports" section.
8. Appendix A direct reference ASTMD5867-05 in Table 1.
9. Appendix B, " > 1.38, > 35.0" clerical error changed to " > 1.36, > 34.5", and increases the length of HVI cotton, and code conversion
section.
10. Part editorial changes. Such as. "HVI measurement" to "HVI test method"; "calibration tile" to "calibrate tiles" and so on.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Guangdong Entry-Exit Inspection and Quarantine of Hebei People's Republic of China
Bureau, People's Republic of China Xinjiang Entry-Exit Inspection and Quarantine People's Republic of China Shanghai, People's Republic of China
Jiangsu Entry-Exit Inspection and Quarantine Bureau, People's Republic of China Shandong CIQ.
The main drafters of this standard. Ye lake, high friendly, Lan Lili, Mr Lee, Ma Zengmei, Zhangnian Zu, Wu Hao, Wang.
This standard was first published in 2005 and 2009, the first revision.
Importers HVI cotton testing methods Test Method
1 Scope
This standard specifies the testing and export of cotton micronaire with a large capacity tester (Highvolumeinstrument, HVI), length
And uniformity, breaking strength and elongation, color, impurities, test methods and technical requirements.
This standard applies to the import and export and other loose upland cotton fiber testing. Cotton may refer.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
SN/T 0775 for the inspection of import and export of textile raw materials plant fiber cotton
ASTMD3025 the calibration standard calibration cotton fiber test results Method
ISO 139 Textiles Standard conditioning and testing atmosphere
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Test to be Cong testbeard
Protruding from the comb cotton fibers, and has been crawled randomly comb combed whiskers.
3.2
Micronaire micronaire
A certain amount of cotton fibers measure permeability under defined conditions, expressed in micronaire scale.
3.3
Breaking strength breakingtenacity
And breaking load corresponding strength.
3.4
Elongation at break elongationatbreak
Corresponding to the elongation and breaking load.
3.5
The upper half of the average length of the upper-half-meanlength
Cotton test length, the longer that half of the weighted average fiber length.
3.6
Length uniformity uniformityratio
The ratio of the length of the span between the two, with a smaller percentage of the value of the larger value indicates.
3.7
Length uniformity index uniformityindex
When cotton fiber length of the test, the ratio of the mean length and the upper half of the average length, the average percentage of the more than half the length of the representation.
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