Air filters used in air conditioning and general ventilation. Methods of test for atmospheric dust spot efficiency and synthetic dust weight arrestance.
STANDARD published on 29.3.1985
Designation standards: BS 6540-1:1985
Note: WITHDRAWN
Publication date standards: 29.3.1985
The number of pages: 32
Approximate weight : 96 g (0.21 lbs)
Country: British technical standard
Category: Technical standards BS