Section 65.203 - Maximum In-Service Time for Nonstandard Boilers(a) A nonstandard boiler construction, installed prior to 1937, shall have a maximum in-service time of thirty (30) years, unless the following are accepted: (1) an internal and external annual inspection; and(2) an annual liquid pressure test of one and one-quarter times the MAWP held for a period of at least thirty (30) minutes, during which no distress or leakage develops. At no time, while applying the liquid pressure test, shall the pressure exceed one and one-quarter times the MAWP by more than 6%.(b) Any nonstandard boiler having lap-riveted longitudinal joints and operating at a pressure in excess of 50 psig (345 kilopascals) shall have a maximum in service of twenty (20) years; this type of boiler, when removed from the existing setting, shall not be reinstalled for a pressure in excess of 15 psig (103 kilopascals).(c) Any boiler having other than a lap-riveted longitudinal joint may be continued in operation without reduction in the MAWP.16 Tex. Admin. Code § 65.203
Adopted by Texas Register, Volume 40, Number 22, May 29, 2015, TexReg 3130, eff. 6/15/2015; Amended by Texas Register, Volume 41, Number 05, January 29, 2016, TexReg 798, eff. 2/15/2016