Active Standard ASTM D6840 | Developed by Subcommittee: D13.54
Book of Standards Volume: 07.02
Historical (view previous versions of standard)
Significance and Use
5.1 This test method is useful for determining the change to the listed properties (see 1.1.1 and 1.1.2) and if the changes are acceptable for the intended use. This test may be used for acceptance testing of commercial shipments of buttons.
5.2 If there are differences of practical significance between the reported test results for two laboratories (or more), comparative tests should be performed to determine if there is a statistical bias between them. As a minimum, test samples should be used that are as homogeneous as possible, that are drawn from the material from which the disparate test results were obtained, and that are randomly assigned in equal numbers to each laboratory for testing. The test results for 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.
1.1 This test method is a means of determining the effect of drycleaning on certain physical attributes of buttons. The test method applies to buttons made from plastics, natural materials, cast metal, stamped metal and electroplated plastic.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D123 Terminology Relating to Textiles
D2724 Test Methods for Bonded, Fused, and Laminated Apparel Fabrics
D3136 Terminology Relating to Care Labeling for Apparel, Textile, Home Furnishing, and Leather Products
D5497 Terminology Relating to Buttons
ICS Number Code 25.220.10 (Surface preparation)