Piping shall be classified as shown in table 56.04-1.
Table 56.04-1--Piping Classifications------------------------------------------------------------------------
Section in
Service Class this part------------------------------------------------------------------------Normal.............................. I, II................. 56.04-2Low temperature..................... I-L, II-L............. 56.50-105------------------------------------------------------------------------ [CGD 72-206R, 38 FR 17229, June 29, 1973, as amended by CGD 77-140, 54 FR 40602, Oct. 2, 1989; CGD 95-012, 60 FR 48049, Sept. 18, 1995]