18-29-702.5.1 Glass pipe.

   All glass pipe shall be of corrosion resistant pre- stressed low expansion borosilicate glass. Couplings shall be made with gasketing of equal corrosion resistant characteristics.

Table 18-29-702.5.1
Wall Thickness of Glass Pipe and Fittings

 

Standard Schedule		Heavy Schedule
Inches	Millimeters	Inches	Millimeters
1 1/2 - 0.12	38 mm - 3 mm	1 1/2 - 0.17	38 mm - 4 mm
2 - 0.14	50 mm - 4 mm	2 - 0.17	50 mm - 4 mm
3 - 0.17	75 mm - 4 mm	3 - 0.20	75 mm - 5 mm
4 - 0.20	100 mm - 5 mm	4 - 0.26	100 mm - 7 mm
6 - 0.24	150 mm - 6 mm	6 - 0.33	150 mm - 8 mm