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Joints between cast-iron pipe or fittings shall be in accordance with Sections 505.6.1 through 505.6.3.
505.6.1 Caulked Joints
Joints for hub and spigot pipe shall be firmly packed with oakum or hemp. Molten lead shall be poured in one operation to a depth of not less than 1 inch (25 mm). The lead shall not recede more than 0.125 inch (3.2 mm) below the rim of the hub, and shall be caulked tight. Paint, varnish or other coatings shall not be applied to the joining material until after the joint has been tested and approved. Lead shall be run in one pouring and shall be caulked tight. Acid-resistant rope and acidproof cement shall be permitted.
505.6.2 Mechanical Compression Joints
Compression gaskets for hub and spigot pipe and fittings shall conform to ASTM C564. Gaskets shall be compressed when the pipe is fully inserted.
505.6.3 Mechanical Joint Coupling
Mechanical joint couplings for hubless pipe and fittings shall comply with CISPI 310 or ASTM C1277. The elastomeric sealing sleeve shall conform to ASTM C564 or CSA B 602 and shall be provided with a center stop. Mechanical joint couplings shall be installed in accordance with the manufacturer's instructions.

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505.6 Materials, Cast-Iron Pipe
Joints between cast-iron pipe or fittings shall be in accordance with Sections 505.6.1 through 505.6.3 ...
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