Specifies tests for waterproofness applicable to equipment in aircraft which is required to operate when exposed to conditions where water is sprayed on it, as in driving rain, or where water is dripping on it, such as condensation falling from an adjacent aircraft structure. It covers two grades of waterproofness.
IS 8252 Pt.6-1976 history
1977IS 8252 Pt.6-1976 Aircraft Equipment Part VI Waterproof Environmental Testing