IS 5858 : Part 2 : 1970 : Accessories to Mechanical Ventilation Systems on Board Ships - Part II : Smoke Protecting Flap Valves
UDC 621.646.222 : 629.12.06 | TED 17 |
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Reaffirmed 2022 |
Scope
1.1 ‘This standard specifies the material and dimensions for smoke protecting ilap valves of square, rectangular or circular construction for use with mechanical ventilation systems on board ships.