AS 2252.1:2002 pdf free download.Biological safety cabinets Part 1: Biological safety cabinets (Class I) for personnel and environment protection. 4 CONSTRUCTION REQUIREMENTS 4.1 Outer shell The outer shell shall be of metal which, if not stainless steel, shall be coated with a durable, corrosion-resistant sealing material and shall be sufficiently robust to prevent fracture or distortion in transport and installation....
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