ISO 16420:2013为每种类型的即用静态葡萄酒（冷态或非冷态天然软木塞、凝聚软木塞、1+1软木塞）定义了一套与不同测试参数相对应的规范。 对于所有参数，这套规范包括待测试止动块数量的建议（增量样本）；可接受的质量水平，对于某些参数:标称值或标称值；规格限制（或“公差”）。 对于静止葡萄酒的软木塞，以及某些参数，引入了范围的概念，要求降低了3个级别: 上限；标准范围；入门级。 因此，对于订购的每批软木塞，消费者应根据这三个规格级别（或范围）说明其需求。 除了每批软木塞的商业参考之外，每个供应商还应根据ISO 16420:2013的要求确定适用范围。 抽样方法以及可能重复的增量样本由抽样标准（目前正在起草）定义，或由消费者和供应商共同定义。 测试的塞子应符合ISO 9727的要求。

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.