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sklademVydáno: 2002-05-21
BS ISO 6741-2:1987
Textiles. Fibres and yarns. Determination of commercial mass of consignments Methods for obtaining laboratory samples
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| Označení normy: | BS ISO 6741-2:1987 |
| Počet stran: | 10 |
| Vydáno: | 2002-05-21 |
| ISBN: | 0 580 39666 5 |
| Status: | Standard |
Popis
BS ISO 6741-2:1987
This standard BS ISO 6741-2:1987 Textiles. Fibres and yarns. Determination of commercial mass of consignments is classified in these ICS categories:
- 59.060.01 Textile fibres in general
- 59.080.20 Yarns
This part of ISO 6741 specifies methods for obtaining laboratory samples for mass determination by one of the methods given in ISO 6741-1. The method appropriate for particular fibres is indicated in ISO 6741-4
The procedures comprise :
| Nature of consignment | Procedure described | |
|---|---|---|
| Bulk staple in bales | Hand sampling (two methods) Core sampling | |
| Tow and strands in bales and cases | Hand sampling | |
| Unsupported wound or coiled packages of raw silk, tow sliver, top or yarn in containers | Hand sampling | |
| Yarn wound on supports | Cutting method Winding (four methods) | |
When a replicate sample is required for other tests or as a precaution against misadventure, the mass taken during sampling shall be doubled and the sample shall then immediately be halved to provide the two samples.