40 16 16
Boron Gas Piping
40 16 13
Ammonia Gas Piping
40 16 00
Specialty and High-Purity Gases Piping
40 15 29
Dissociated-Ammonia-Gas Combustion System Piping
40 15 26
Endothermic-Gas Combustion System Piping
40 15 23
Exothermic-Gas Combustion System Piping
40 15 19
Flue-Gas Combustion System Piping
40 15 16
Oxygen Combustion System Gas Piping
40 15 13
Combustion Air Piping
40 15 00
Combustion System Gas Piping
40 13 00
Process Ductwork
40 12 53
High-Pressure Compressed Air Process Piping
40 12 23
Low-Pressure Compressed Air Process Piping
40 12 13
Compressed Air Process Piping for Breathing Service
40 12 00
Compressed Air Process Piping
40 11 23
Condensate Process Piping for Process Applications
40 11 19
High-Pressure Steam Process Piping
40 11 16
Intermediate-Pressure Steam Process Piping
40 11 13
Low-Pressure Steam Process Piping
40 11 00
Steam Process Piping