1.1 本试验方法用于土工膜及相关产品的指数抗穿刺性测定。 1.2 试验方法的使用 D4833/D4833M 可能不适合测试一些具有大开口的编织土工织物或相关产品，如土工网和土工格栅。 1.3 建议土工布及土工布相关产品采用试验方法进行试验 D6241 . 1.4 以SI单位或英寸-磅单位表示的值应单独视为标准值。每个系统中陈述的值不一定完全等同；因此，为确保符合标准，每个系统应独立使用，两个系统的数值不得合并使用。 1.5 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ======意义和用途====== 5.1 本试验方法是测定土工膜及相关产品抗穿刺性的指标试验。这种测试方法的使用是通过提供标准准则和统一报告的基础来建立一个指标值。 5.2 该试验方法被认为对于土工膜和相关材料的商业装运的验收试验是令人满意的，因为该试验方法已在验收行业中广泛使用测试。 5.2.1 如果在使用本试验方法进行商业装运验收试验时，因报告的试验结果差异而产生争议，买方和供应商应进行比较试验，以确定其实验室之间是否存在统计学偏差。对于偏倚的调查，建议有能力的统计协助。至少，双方应从所讨论类型的批次材料中抽取一组尽可能均匀的试样。然后，应将相同数量的测试样本随机分配到每个实验室进行测试。两个实验室的平均结果应使用学生的 t -测试不成对的数据和双方在测试开始前选择的可接受的概率水平。如果发现偏差，必须找到并纠正其原因，或者买方和供应商必须同意根据已知偏差解释未来的测试结果。

1.1 This test method is used to measure the index puncture resistance of geomembranes and related products. 1.2 The use of Test Method D4833/D4833M may be inappropriate for testing some woven geotextiles or related products which have large openings, such as geonets and geogrids. 1.3 It is recommended that geotextile and geotextile related products be tested using Test Method D6241 . 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.5 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. 1.6 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. ====== Significance And Use ====== 5.1 This test method is an index test for determining the puncture resistance of geomembranes and related products. The use of this test method is to establish an index value by providing standard criteria and a basis for uniform reporting. 5.2 This test method is considered satisfactory for acceptance testing of commercial shipments of geomembranes and related materials since the test method has been used extensively in the trade for acceptance testing. 5.2.1 In case of a dispute arising from differences in reported test results when using this test method for acceptance testing of commercial shipments, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens that are as homogeneous as possible and that are from a lot material of the type in question. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using Student's t -test for unpaired data and an acceptable probability level chosen by the two parties before the testing is begun. If a bias is found, either its cause must be found and corrected or the purchaser and the supplier must agree to interpret future test results in the light of the known bias.