18-28-1202.4 Piping materials standards.

Hydronic pipe shall conform to the standards listed in Table 18-28-1202.4. The exterior of the pipe shall be protected from corrosion and degradation.

Table 18-28-1202.4
Hydronic Pipe

Material	Standard (see Chapter 16)
Acrylonirile butadiene styrene (ABS) plastic pipe	ASTM D 1527; ASTM D 2282
Brass pipe	ASTM B 43
Brass tubing	ASTM B 135
Copper or copper- alloy pipe	ASTM B 42; ASTM B 302
Copper or copper- alloy tube (Type K, L, or M)	ASTM B 75; ASTM B 88; ASTM B 251
Chlorinated polyvinyl chloride (CPVC) plastic pipe	ASTM D 2846; ASTM F 441; ASTM F 442
Cross-linked polyethylene/aluminum/cross-linked polyethylene (PEX-AL-PEX) pressure pipe	CSA CAN/CSA-B-137.10
Cross-linked polyethlene (PEX) tubing	ASTM F 876; ASTM F 877
Lead pipe	FS WW-P 325B
Polybutylene (PB) plastic pipe and tubing	ASTM D 3309
Polyvinyl chloride (PVC) plastic pipe	ASTM D 1785; ASTM D 2241
Steel pipe	ASTM A 53; ASTM A 106
Steel tubing	ASTM A 254

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