1. Standard- BS6853 Annex D8.5
BS6853 Annex D: Methods for measuring smoke density
BS6853:1999 Code of practice for fire precautions in the design and construction of passenger carrying trains.
BS 6853 Annex D.8.5 is utilized for seats (Tables 9 of BS6853: 1999). NB. Tests should be performed on actual specimen seats
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