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适用范围：<p id="s00002">1.1 This specification covers stainless steel clamps for use with four sizes of insert fittings that comply with F 1807, and cross-linked polyethylene (PEX) plastic tubing that complies with F 876<astmref rid="a00009"> or F 877<astmref rid="a00010">. These clamps are intended as an alternative to the copper-alloy crimp-rings of Specifications F 1807 or F 2159<astmref rid="a00012"><astmref rid="a00011"> for use in 100 psi (689.5 kPa) cold- and hot-water distribution systems operating at temperatures up to and including 180<span class=''unicode''>x00B0;</span>F (82<span class=''unicode''>x00B0;</span>C). Included are requirements for materials, workmanship, dimensions and marking of the stainless steel clamps; requirements for deforming the clamps; which apply to assemblies of PEX tubing and Specifications F 1807<astmref rid="a00012"> and F 2159<astmref rid="a00011">, insert fittings secured with deformed clamps per this specification.</p> <p id="s00003">1.2 The values stated in inch-pound units are to be regarded as the standard. The SI values stated in parentheses are provided for information purposes.</p> <p id="s00004">1.3 <span class="italic"> 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 and health practices and determine the applicability of regulatory limitations prior to use.</span>