860.13 Water.
as 0-6-6, 0-5-6 +.05B and 0- 4-12 +.05, may be used and the added elements credited to the total element requirements for plant food.
860.13 Water.
Water free from substances harmful to the growth of plantings will be approved as suitable for use with roadway improvement materials.
860.14 Blank.
GAS PIPE, VALVES, AND APPURTENANCES
861.01 Steel Gas Pipe.
Steel pipe shall meet the requirements of API 5L, ANSI B36.10 and ANSI B36.19. Pipe coating shall meet the requirements of AWWA C -203.
861.02 Steel Fittings and Flanges.
Buttweld fittings shall meet the requirements of ANSI B16.9. Steel fittings and flanges 2 inches {50 mm} and smaller shall meet the requirements of ANSI B16.11. Steel fittings and flanges larger than 2 inches {50 mm} shall meet the requirements of ANSI B16.5. All bolts shall meet the requirements of ASTM A 307 Grade B with semi -finished heavy hex nuts. Fittings shall have a minimum pressure rat ing equal to the adjoining pipe installed. Fittings shall be coated meeting the requirements of AWWA C -203.
861.03 Flanged Gaskets.
Flanged gaskets shall be compressed material meeting the requirements of ANSI B16.21. Flanged gaskets shall be 1/16 inches { 1.5 mm} thick composition type.
861.04 Polyethylene (PE) Plastic Pipe and Fittings.
Pipe and fittings shall be made of PE2406 ASTM D 3350 cell classification 345343C or PE3408 ASTM D 3350 cell classification 345544C. The wall thickness shall be determined by the depth of bury, loading on the pipe, and the pipe’s internal pressure.
861.05 Valve.
Valves shall be as described in the project plans and specifications. Valves shall be selected from the Utilities’ approved material/manufacturer list.
861.06 Valve Boxes and Stem Extensions.
Valve boxes shall be cast iron with screw or slide -type adjustments and provided with all valves that are installed vertically. Valve boxes shall have a minimum diameter of 5.25 inches {133 mm}. Box covers shall be marked "gas". Valve boxes shall be selected from Utilities’ approved material/manufacturer list. Valve stem extensions (including lubrication fitting) shall be provided with all valves that are greater than 3 feet {0.9 m} below the adjacent ground surface. The extensio n stem shall be of the same size as the valve stem and shall be provided with a stem guide.
861.07 Tapping Valve.
Tapping valves shall be as described in the project plans and specifications. Where required the tapping valve shall include a sleeve to hold the valve in place. Tapping valves and sleeves shall be selected from the Utilities’ approved material/manufacturer list. SECTION 862 UTILITY ENCASEMENT PIPE
862.01 Welded Steel Encasement Pipe.
Welded steel encasement pipe shall comply with the appropriate requirements for the size shown in the following table unless local codes or ordinances are more stringent: