ASTM D4465-05(R2021) pdf free download

ASTM D4465-05(R2021) pdf free download.Standard Performance Specification for Zippers for Dungarees, Jeans, and Work Trousers
1. Scope
1.1 This performance specification covers zippers to be used as fly closures in dungarees, jeans, and work trousers made from heavy denim or other durable fabric, approximately 475 g ⁄m 2 (14 oz/yd 2 ). 1.2 Zippers covered by this specification may be satisfac- tory for lighter weight denim and other fabrics. 1.2.1 When lighter weight material is being used, consider- ation should be given to the zipper size and slider type because of their effect on the appearance of the zipper installation area. 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 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 denim, n—a durable woven twill fabric, usually of all cotton or a blend of cotton and man-made fibers, made from a variety of yarn numbers, and in various fabric weights, colors, designs, and finishes. 3.1.1.1 Discussion—Traditionally, denim is made with in- digo blue dyed cotton warp and undyed or tinted filling. Denim fabrics are used for many types of garments including work clothes, sportswear, dresswear, and home furnishings. 3.2 Definitions ofTerms Specific to This Standard: 3.2.1 jeans, n—a style oftrousers made ofa twill fabric used as sportswear and work clothing. 3.2.2 dungaree, n—trousers made from denim and designed for general heavy work wear. 3.2.3 trouser, n—a garment that closes at the waist and covers the lower body to the crotch and each leg from the waist to the ankle. 3.3 For other textile terminology used in this specification, refer to Terminology D123. For definitions of zipper terms used in this specification, refer to Terminology D2050.
4. Specification Requirements
4.1 The properties ofzippers for dungarees, jeans, and work trousers shall conform to the specification requirements in Table 1.
5. Significance and Use
5.1 This specification serves as a guide for the purchase of zippers to be used for dungarees, jeans, or work trousers. 5.2 Upon agreement between the purchaser and the supplier, zippers intended for this end-use should meet all of the requirements listed in Table 1 of this specification. 5.3 It is recognized that for purposes offashion or aesthetics the ultimate consumer may find acceptable dungarees, jeans, or work trousers, having zippers that do not conform to all of the requirements in Table 1. Therefore, one or more of the requirements listed in Table 1 may be modified by agreement between the purchaser and the supplier. 5.3.1 In such cases, and references to this specification shall specify that: This zipper meets Performance Specification D4465 except for the following characteristic(s). 5.4 Where no prepurchase agreement has been reached between the purchaser and the supplier, and in case of controversy, the requirements listed in Table 1 are intended to be used as a guide only. As noted in 5.3, ultimate consumer demands dictate varying performance parameters for any particular style of zipper. 5.5 The uses and significance of particular properties and test methods are discussed in the appropriate sections of the specified test methods.
6. Sampling
6.1 Description of Lots—Unless there is prior agreement, consider as a lot for acceptance testing all material of a single item received as a single shipment. 6.2 Lot Samples and Laboratory Samples—For acceptance testing, take lot samples and laboratory samples as directed in each of the applicable test methods. 6.3 Test Specimens—Take the number ofspecimens directed in each ofthe applicable test methods. Take the specimens, and perform the tests on zippers as received by the garment manufacturer or on zippers removed from unused garments. 6.3.1 If the method does not specify the number of speci- mens and there has been no prior agreement, use the proce- dures in Practice D2905 to determine the number of specimens per unit in the laboratory sample when using a reliable estimate of the variability of individual observations on similar materi- als in the user’s laboratory under conditions of single-operator precision. The number of specimens per unit in the laboratory sample shall be such that the user may expect at the 95 % probability level that each test result is not more than 5 % of the average above or below the true average for the unit in the laboratory sample.