【国外标准】 Standard Specification for Metal, Expanded, Steel

This specification covers expanded metal. Expanded metal shall be of the following types, classes, grades such as type I-expanded, type II-expanded and flattened, class I-uncoated, class2-hot-dip zinc uncoated, class 3-corrosion resisting steel, grade A and grade B. Expanded metal shall be made from commercial steel, carbon steel sheets or from stainless steel sheets. Expanded metal shall be manufactured with the corresponding thickness, design size, opening size and strand size. Each single strand test specimen shall be visually inspected, and that surface of the strand observed to have the most nearly uniform coating shall be the tension surface when the strand is subject to bending. The coating thickness shall be measured microscopically at a suitable magnification. The minimum and maximum coating thicknesses shall be measured on each of the four exposed surfaces, but not at the corners.1.1 This specification covers expanded metal.1.1.1 Expanded metal covered by this specification is intended for a variety of applications.1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only and may be approximate.1.3 The following precautionary caveat pertains only to the test methods portion, Section 11, of this specification. 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.1.4 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.