(Optional) Identify the different types of natural gas distribution materials.

Identification should include

• pipe wrought from iron or steel (galvanized or black), or yellow brass containing not more than 75 percent copper, or internally tinned or equivalently treated copper
• approved PE (polyethlene) pipe for exterior buried piping systems when used with factory assembled steel risers.

Process/Skill Questions:

• Why is it important to be aware of the types of natural gas distribution materials?
• Why does copper pipe not meet code in some areas?