CGSB 115.15 : M91
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
HIGH EFFICIENCY RIGID TYPE AIR FILTERS FOR THE REMOVAL OF PARTICULATE MATTER FROM VENTILATING SYSTEMS
01-01-2012
01-12-2013
Refers to pleated-media air filters, disposable, rigid type, for use as high efficiency filters to remove particulate matter from the air streams in air conditioning, ventilating and heating systems, that have a face velocities up to 3.2 m/s.
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