1.1 本试验方法包括测定氧气通过薄膜、片材、层压材料、共挤出物、涂层或未涂层纸或织物形式的塑料的传输速率的程序。 1.2 该测试方法不是测量氧气传输速率（OTR）的唯一方法。还有使用其他氧传感器和程序的其他OTR测定方法。 1.3 以国际单位制表示的值应视为标准值。用于报告氧气传输速率的常用公制单位包括在术语、程序、精度和偏差章节以及附录的计算章节中。 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如有）。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，并确定监管限制的适用性。 1.5 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《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 5.1 氧气传输速率是包装材料为各种包装产品（包括食品、药品和医疗器械）提供的包装功能的重要决定因素。在某些应用中，必须允许足够的氧气渗透到包装中。在其他情况下，必须尽量减少氧气进入，以保持产品质量。 5.2 测试方法中描述了测量氧气传输速率的其他ASTM标准方法 985年 和测试方法 F2622年 .

1.1 This test method covers a procedure for determination of the transmission rate of oxygen gas through plastics in the form of film, sheeting, laminates, coextrusions, coated or uncoated papers or fabrics. 1.2 This test method is not the only method for measurement of the oxygen transmission rate (OTR). There are other methods of OTR determination that use other oxygen sensors and procedures. 1.3 The values stated in SI units are to be regarded as standard. Commonly used metric units used to report Oxygen Transmission Rate are included in Terminology, Procedure, Precision and Bias sections and in the Calculation section of the Appendix. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 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 The Oxygen Transmission Rate is an important determinant of packaging functionality afforded by packaging materials for a wide variety of packaged products including food, pharmaceuticals and medical devices. In some applications, sufficient oxygen must be allowed to permeate into the package. In others, the oxygen ingress must be minimized to maintain product quality. 5.2 Other ASTM Standard Methods to measure the oxygen transmission rate are described in Test Method D3985 and Test Method F2622 .