This standard specifies the product classification and marking, requirements, test methods, inspection rules, marking, packaging and storage of tubular liquid level gauges (hereinafter referred to as liquid level gauges) with flange connection dimensions according to GB/T 2501 and CB/T 4196 . This standard applies to marine water tanks and marine oil (except heavy fuel oil) tanks with a volume not greater than 500L.
CB/T 3665-2013 Referenced Document
CB/T 4196 Marine pipe flanges-connection dimensions and mating face
GB 15763.2 Safety glazing materials in building-Part2:Tempered glass
GB/T 1184-1996 Geometrical tolerancing--Geometrical tolerance for features without individual tolerance indications