ISO 186:2002 纸和纸板.测定平均质量的取样

标准编号：ISO 186:2002

中文名称：纸和纸板.测定平均质量的取样

英文名称：Paper and board — Sampling to determine average quality

发布日期：2002-03

标准范围

本国际标准规定了一种从大量纸张或纸板（包括实心和瓦楞纤维板（见ISO 4046:1978））中获取代表性样品的方法，用于测试，以确定其平均质量是否符合规定的规范。它定义了为解决买方和卖方之间有关已交付或正在交付的指定批次纸张或纸板的争议而进行抽样时适用的条件。注:如果可供抽样的批次少于50%，则在没有相反协议的情况下，根据本国际标准进行的抽样将无效。该方法不适用于确定批次内的可变性。如果国际标准参考了根据本标准进行的取样，但此类取样不可能、不可行或不适当，且不涉及争议，则规范性附录A中给出了指南。

This Iinternational Standard specifies a method of obtaining a representative sample from a lot of paper or board, including solid and corrugated fibreboard (see ISO 4046:1978), for testing to determine whether or not its average quality complies with set specifications.It defines the conditions which apply when sampling is carried out to resolve disputes between buyer and seller relating to a defined lot of paper or board, which has been or is being delivered.NOTE If less than 50 % of the lot is available for sampling, then sampling in terms of this International Standard will be invalid in the absence of agreement to the contrary.The method is unsuitable for determining the variability within a lot.In cases where International Standards make reference to sampling according to this standard but where such sampling is impossible, impractical or inappropriate, and where no dispute is involved, guidance is given in normative annex A.

标准预览图