No one test determines the suitability of a zipper for a specific end use. Since the tests are inter-related more than one may be needed for a complete evaluation. The method(s) in the standard along with those in Test Methods D2051, D2052, D2053, D2054, D2057, D2058, D2059, D2060, and D2062 are a collection of proven test methods. They can be used as aids in the evaluation of zippers without the need for a thorough knowledge of zippers. The enumerated test methods do not provide for the evaluation of all zipper properties. Besides those properties measured by means of the enumerated test methods there are other properties that may be important for the satisfactory performance of a zipper. Test methods for measuring those properties have not been published either because no practical methods have yet been developed or because a valid evaluation of the information resulting from existing unpublished methods requires an intimate and thorough knowledge of zippers. Holding strengths of separable units Holding strength of slider lock Holding strength of stops Resistance to angular pull-off of slider pull Resistance to cushioned compression of sliders Resistance to pull-off of slider pull Resistance to twist of pull and slider Slider deflection and recovery Strength of chains and elements Torsional resistance of slider pull for removal of components