这些卫生标准涵盖了牛奶和奶制品生产、加工和处理设备中作为产品接触面和/或清洁溶液接触面的多种用途塑料的材料要求。提供了塑料的试验标准，以确定其可接受性，即在加速使用模拟试验中，塑料的清洁能力和有效杀菌处理能力，以及保持其基本功能特性和表面光洁度的能力。这些标准不适用于一次性使用的塑料，也不适用于化学或热硫化或固化产生的橡胶或类似橡胶的塑料。 这些标准也不包括单个塑料组件的设计和制造标准，因为其他3-A卫生标准和3-A认可实践中提供了此类标准。

These sanitary standards cover the material requirements of plastics for multiple-use as product contact and/or cleaning solution contact surfaces in equipment for production, processing, and handling of milk and milk product(s). Test criteria are provided for plastics as a means of determining their acceptance as to their ability to be cleaned and to receive effective bactericidal treatment and to maintain their essential functional properties and surface finish in accelerated use-simulating tests. These standards do not apply to plastics for single service application nor plastics which are of rubber or rubber-like origin resulting from chemical or thermal vulcanization or curing. These standards are also not meant to cover design and fabrication criteria for individual plastic components, because such criteria are provided for in other 3-A Sanitary Standards and 3-A Accepted Practices.