ASTM D3693-02(R2021) pdf free download

ASTM D3693-02(R2021) pdf free download.Standard Specification for Labeled Length per Holder of Sewing Thread
1. Scope
1.1 This specification covers requirements for the labeled lengths of sewing threads of all materials. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
3. Terminology
3.1 Definitions: 3.1.1 For definitions of textile terms used in this specification, thread holder and sewing thread, refer to Termi- nology D4849. 3.1.2 For other textile terms used in this specification, refer to Terminology standards D123, D3888, D3990, and D4849.
4. Requirements
4.1 The average for all holders shall equal or exceed the labeled length. 4.2 For home sewing spools, the observed length of indi- vidual holders shall equal or exceed the percent of labeled length shown in Table 1. 4.3 For ready-made bobbins, the observed length of indi- vidual holders shall equal or exceed 97 % ofthe labeled length. 4.4 For all other holders, when the sample size is nine or fewer, the observed length of individual holders shall equal or exceed 95 % of the labeled length. For a sample size of ten or more the observed length of one holder may be less than 95 % of the labeled length. 4.5 If the initial sample consists of fewer than ten holders and the average length measured fails to conform to the requirements of 4.1 but meets those of 4.2, 4.3, or 4.4, as appropriate, take additional specimens from the lot and test until a total of ten have been measured. Reevaluate the results ofthese ten specimens against the requirements of4.1, 4.2, 4.3, or 4.4, as appropriate. If the new average conforms with the requirements of 4.1 and the individual holders with the requirements of 4.2, 4.3, or 4.4, as appropriate, consider the lot acceptable. 4.5.1 If the original lot consists of fewer than ten holders, the supplementary sample will be one half of the holders remaining in the lot following the initial sampling.
5. Sampling
5.1 Lot—Unless otherwise agreed upon between the pur- chaser and supplier, a lot shall be a discrete manufacturing unit or a billed quantity of a specific color, ticket size, and length put-up of thread. A billed quantity can consist of a single unit, a carton, box, or multiple units of either, containing a number of holders of thread. N OTE 1—An adequate specification or other agreement between the purchaser and the supplier requires taking into account variability between shipping units, between packages, or ends within shipping unit, and between specimens from a single package so as to provide a sampling plan with a meaningful producer’s risk, user’s risk, acceptable quality level, and limiting quality level. 5.2 Sample—Unless otherwise agreed upon between the purchaser and supplier, and except for ready-made bobbins, the sample, chosen at random, shall be 10 % of the holders in the lot, with a minimum of one holder, up to a maximum of ten holders. The lot sample and laboratory sample are synony- mous.
6. Test Method
6.1 Determine the length of each holder of thread as directed in the length per thread holder procedure of Test Methods D204. Use the sampling directions in this specifica- tion in place of those in Test Methods D204.
7. Conformance
7.1 Material that fails to conform to the requirements of this specification may be rejected. Rejection shall be reported to the supplier promptly and in writing. In case ofdissatisfaction with the results of the test, the supplier may make claim for a rehearing. The terms of the rehearing shall be as agreed upon between the supplier and the purchaser.