这些标准涵盖了袋式收集器的卫生方面，袋式收集器用于干燥过滤器截留，以及从喷雾干燥系统、速溶系统和干燥设备排出的空气中收集干燥食品的颗粒物，或其他干燥产品系统，从袋式收集器产品/空气入口的法兰或连接处开始，终止于排气和产品出口的法兰或连接处。对于压缩空气，袋式收集器从压缩空气贮存器的进气口开始，或者，如果是内部压缩空气接收器，则应从袋式收集器的进气口开始。 如果袋式收集器设计用于机械清洁，则这些标准包括清洁溶液管道、阀门和袋式收集器的相关组件。这些标准还包括适用于袋式收集器的材料和制造标准；a、 通过多种方法进行清洁，并在拆卸前进行不同程度的清洁。b、 有可选的整体流化床组件。这些标准不包括产品出口阀或进口法兰或接头上游或出口法兰或接头下游使用的任何阀门或隔离装置。为了符合这三点- A卫生标准、袋式收集器应符合以下设计、材料和制造标准，以及本文引用的适用文件。

These standards cover the sanitary aspects of bag collectors for the dry filter entrapment and collection of particulates of dry food products from air exhausted from spray drying systems, instantizing systems, or other dry product systems beginning at the flanges or junctions of the product/air inlets of the bag collector and terminating at the flanges or junctions of the air exhaust and product outlets.With respect to pressurized air, the bag collector starts at the air inlet to the pressurized air reservoir, or, in the case of an internalpressurized air receiver, it shall start at the air inlet to the bag collector.If the bag collector is designed for mechanical cleaning, these standards include the cleaning solution pipelines, valves, and associated components integral to the bag collector.These standards also include materials and fabrication criteria appropriate for bag collectors;a. to be cleaned by a variety of methods and with different degrees of prior disassembly.b. which have optional integral fluid bed components.These standards do not include product-outlet valves or any valves or isolation devices used upstream from inlet flanges or junctions, or downstream from outlet flanges or junctions.In order to conform to these 3-A Sanitary Standards, bag collectors shall comply with the following design, material, and fabrication criteria, and the applicable documents referenced herein.