NFPA 33 Standard for Spray Application Using Flammable or Combustible Materials
NFPA 33 使用易燃或可燃材料的喷雾应用标准
15.8.3：Enclosures
Enclosures shall either be listed for the specific application or shall be designed to resist the destructive effects of an internal deflagration. Any enclosure that is not so listed and is effectively tight, such as a spray booth, dust collector, powder recovery device, or other enclosure, shall be provided with one of the following:
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Deflagration venting that meets the requirements of NFPA 68;
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A deflagration suppression system that meets the requirements of NFPA 69;
容器应列出具体用途，或设计为抵抗内部爆燃的破坏性影响。任何未如此列出且有效密封的容器，如喷粉室、除尘器、粉末回收装置或其他容器，均应配备下列设备之一：
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符合NFPA68要求的泄爆装置；
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符合NFPA69要求的爆炸抑制系统；
