Piping materials standards.
Municipal Code of Chicago § 18-28-1202.4
in effect18-28-1202.4 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)
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
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2688992Fetched: 10/24/2026