1.1本试验方法描述了印刷和书写用纸在高浓度下暴露于常见大气污染物气体中的实验室程序，以允许此类纸加速老化。 1.2本试验方法规定了获取纸张相对稳定性信息所需的样品制备和暴露条件，该信息涉及纸张暴露于常见大气污染气体引起的机械强度和光学性能的变化。 1.3本试验方法提供了有关纸张稳定性的定性结果，并没有定义给定纸张达到规定强度或光学性能的确切预期寿命。指定属性集的可接受极限必须由每个最终用户定义，并将决定待测试纸张的预期寿命。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 对于常见大气污染气体对各种印刷和书写纸的物理强度和光学性能的持久性的影响，相关方可使用本试验方法。 该测试将为制造商、纸张用户和其他相关方提供纸张稳定性的量化排名，以识别在一段时间内暴露于常见大气污染气体时稳定、中等稳定和不稳定的纸张。 稳定性排名可用于定义纸张与污染气体接触的稳定性，但不会定义特定的预期寿命期，因为给定纸张的不同用户的可接受物理强度和光学性能的极限不同。

1.1 This test method describes a laboratory procedure for the exposure of printing and writing paper to common atmospheric pollutant gas at elevated levels of concentration to permit accelerated aging of such paper. 1.2 This test method specifies the sample preparation and conditions of exposure required to obtain information on the relative stability of paper with regard to change in mechanical strength and optical properties brought about by exposure of such paper to common atmospheric pollutant gas. 1.3 This test method provides qualitative results regarding paper stability and does not define the exact life expectancy for a given paper to reach a specified set of strength or optical properties. The limit(s) of acceptability for a specified set of properties must be defined by each end user and will determine the life expectancy of the paper to be tested. 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. ====== Significance And Use ====== This test method will find use by parties concerned about the influence of common atmospheric pollutant gases on the permanence of the physical strength and optical properties of various printing and writing papers. The test will provide manufacturers, paper users and other interested parties with quantified rankings of paper stability that identify papers that are stable, moderately stable and unstable when exposed to common atmospheric pollutant gases over periods of time. The stability rankings may be used for definition of the stability of paper to pollutant gas exposure, but will not define specific periods of life expectancy, as the limits of acceptable physical strength and optical properties will be different for various users of a given paper.