Specification for electric luminaires (lighting fittings). general requirements and tests. resistance to theingress of moisture and dust / Part 1 : Section 1.9 : Standards & Industrial Research Institute of Malaysia - 8 pages : illustrations ; 30 cm. - Malaysian Standard ; MS 619 : Pt.1 : Sect.1.9 : 1982 . - Malaysian Standard ; MS 619 : Pt.1 : Sect.1.9 : 1982 .


Electric lighting