定价： 345元 / 折扣价： 294 元 加购物车

定价： 605元 / 折扣价： 515 元

定价： 605元 / 折扣价： 515 元

定价： 605元 / 折扣价： 515 元

定价： 605元 / 折扣价： 515 元

定价： 605元 / 折扣价： 515 元

定价： 345元 / 折扣价： 294 元

定价： 345元 / 折扣价： 294 元

定价： 260元 / 折扣价： 221 元 加购物车

定价： 481元 / 折扣价： 409 元 加购物车

定价： 260元 / 折扣价： 221 元 加购物车

4.1 This guide is intended to provide designers, specifiers, owners, operators and managers of synthetic turf playing systems with information related to specifying, measuring and managing impact attenuation.4.2 The goal of this guide is to facilitate decisions and actions that will maximize the safety, playability and functional longevity of individual synthetic turf playing systems, primarily as related to impact attenuation.4.3 This guide presents various options related to specifying, measuring and managing impact attenuation of synthetic turf playing systems.4.4 Unless specifically stated, this guide does not attempt to endorse or recommend specific options or practices. It is left to the user of the guide to determine the option, practice or course of action that is most appropriate for them, given the specifics of their individual situation.1.1 Applicable to synthetic turf playing systems, regardless of intended use, which are subject to testing in accordance with Specification F1936.1.2 Applicable to synthetic turf playing systems installed either indoors or outdoors.1.3 Not applicable to natural turf playing systems.1.4 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.

定价： 515元 / 折扣价： 438 元 加购物车

1.1 This test method covers a comparative measurement method for impact absorption properties for body padding and protective wear (apparel) for the sport of fencing. The apparel includes fencing mask bibs, underarm protectors or plastrons, padded vests, uniform jackets, knickers or trousers, gloves, and other protection worn to protect against impacts from the fencing weapon's tip (for example, touches) for foil, saber, or epee. The scope of this test method excludes measurement or performance for perforation resistance of the blade, whether in tact or broken. Note 1-This is a simple test method to discriminate between qualities of different padding materials or systems under an impact that simulates the delivery of a fencing touch. It does not purport to measure quantitative impact energy absorption values at thrust sites. Until in-field data become available, this standard allows manufacturers to intercompare padding systems, fabrics, materials, or composites for protective fencing wear for integrity, robustness, and impact attenuation. 1.2 This standard does not purport to address all of the safety problems associated with fencing padding and will not prevent all injuries due to blades impacting fencers. It is the responsibility of the users of the protective padding to establish appropriate safety practices, including maintaining safe fencing distances and care and inspection of the protective wear as well as the blade. Specifically, this standard does not address degradation of the protective padding with use and laundering, or performance of the padding for puncture resistance by thrusts involving in-tact or broken blades. It should be recalled that the sport derives from duelling and is inherently not free of risk of injury or death .

定价： 0元 / 折扣价： 0 元

定价： 689元 / 折扣价： 586 元

5.1 This test method may be used to determine the ability of a button to resist breaking under impact, for example in pressing the end item, which could cause the button to fail.NOTE 1: In the development of this test method it was found that the following factors influenced the ability of a button to resist failure under impact conditions: resin formulation, shape ligne size, thickness, number and spacing of holes. Buttons may also pass this test but fail during the pressing of a garment due to the presence of heat during pressing.5.1.1 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, using competent statistical assistance. As a minimum, test samples should be used that are as homogeneous as possible, that are drawn from the material from which the disparate rest results were obtained, and that are randomly assigned in equal numbers to each laboratory for testing. Other materials with established test values may be used for this purpose. The test results from 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 must be adjusted in consideration of the known bias.5.2 Test Method D5171 for the determination of the impact resistance of buttons may be used for acceptance testing of commercial shipments of buttons but caution is advisable since information is lacking on precision.1.1 This test method covers the determination of impact resistance of plastic sew-through buttons.1.2 The values stated in either acceptable metric units or other units shall be regarded separately as standard. The values expressed in each system may or may not be exact equivalents: therefore, each system must be used independently of the other, without combining values in any way.1.3 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.

定价： 515元 / 折扣价： 438 元 加购物车