软木塞.无气葡萄酒用软木塞.机械和物理规格

[中文适用范围]： 本国际标准规定了适用于各种预用圆柱形软木塞（包括天然软木塞、胶合软木塞和双用软木塞）的一组规范，这些规范对应于不同的测试参数，并列出了相应的规范内容：一、尺寸；二、质量（仅限双用软木塞）；三、质量和表观密度（仅限胶合软木塞）；四、含水率；五、压缩后的尺寸恢复性；六、拔出力；七、液体密封性；八、粉尘含量。对于所有参数，本规范包括：一、建议测试的软木塞数量（增量样本）；二、可接受的质量水平；以及对于某些参数：三、同义范围或值；四、规格限制（或“公差”）。针对静止葡萄酒用软木塞，并且对于某些参数，引入了范围的概念，分为三个递减等级：一、上等范围；二、标准范围；三、入门级。因此，买方应根据这三个规范等级（或范围）为订购的每一批软木塞指定具体需求。除了商业参考号外，每个卖方还应定义这些范围内所涉及的标准要求。抽样方法以及增量样本的可能重复由抽样标准（目前正在起草中）或买方和卖方共同确定：测试的软木塞应符合ISO 9727的要求。 [外文原描述]： ISO 16420:2013 defines, for each type of ready-to-use, cylindrical cork stopper for still wines (colmated or non-colmated natural cork stoppers, agglomerate cork stoppers, 1 + 1 stoppers), a set of specifications corresponding to different tested parameters. For all parameters, this set of specifications comprises a proposal for the number of stoppers to be tested (incremental sample); an acceptable quality level and, for certain parameters: nominal value or values; specification limits (or "tolerances"). For cork stoppers for still wines, and for certain parameters, the concept of a range is introduced, with 3 decreasing levels of requirements: upper range; standard range; entry level. It is, therefore, up to the consumer to specify, for each batch of cork stoppers ordered, what their needs are based on these three specification levels (or ranges). It is also up to each supplier, besides a commercial reference for each batch of cork stoppers, to define which range applies in terms of the requirements in ISO 16420:2013. The sampling method, as well as the possible repetitions of incremental samples are defined by the sampling standard (currently being drafted) or defined jointly by the consumer and the supplier. The stoppers tested shall comply with the requirements of ISO 9727.