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ASTM D2812-07(2021)
Standard Test Method for Non-Lint Content of Cotton
Name übersetzen
NORM herausgegeben am 1.1.2021
Informationen über die Norm:
Bezeichnung normen: ASTM D2812-07(2021)
Ausgabedatum normen: 1.1.2021
SKU: NS-1015299
Zahl der Seiten: 5
Gewicht ca.: 15 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Kategorie - ähnliche Normen:
Die Annotation des Normtextes ASTM D2812-07(2021) :
Keywords:
content, cotton, non-lint,, ICS Number Code 59.060.10 (Natural fibres)
Ergänzende Informationen
| Significance and Use | ||||||
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5.1?This test method for testing cotton for non-lint content is considered satisfactory for acceptance testing of commercial shipments since it is the best available procedure for obtaining objective data. 5.1.1?If there are differences of practical significance between reported test results for two laboratories (or more), comparative tests should be performed to determine if there is a statistical bias between them, using competent statistical assistance. As a minimum, ensure the test samples to be used are as homogeneous as possible, are drawn from the material from which the disparate test results were obtained, and are randomly assigned in equal numbers to each laboratory for testing. The test results from the two laboratories should be compared using a statistical test for unpaired data, at a probability level chosen prior to the testing series. If a bias is found, either its cause must be found and corrected, or future test results for that material must be adjusted in consideration of the known bias. 5.2?This test method gives data on the non-lint content of raw cotton which can be used as a basis for: (1) estimating the net amount of manufactured textile product obtainable from raw cotton; (1.1?This test method covers the determination of the non-lint content of cotton using the Shirley Analyzer. The cotton may be in the form of (1.2?This test method is especially adapted for determining non-lint content of cotton by use of the Shirley Analyser. 1.3?The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 1.4?This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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