Chinese Standard: GB/T 28491-2012

Button general technical requirements and testing methods—Natural shell button

全国钮扣标准化技术委员会(SAC/TC 400)

本标准规定了天然贝壳钮扣（以下简称钮扣）的产品分类、技术要求、试验方法、检验规则、标志、包装、运输及贮存。
本标准适用于以天然贝壳为原材料，在特定设备和工艺条件下进行加工制成的钮扣。

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