Section 97.58 - Test Standards(a) Test standards must be certified annually by a recognized or accredited laboratory that adheres to ISO 17025 standards. A service company must maintain at least one test standard per licensed device category as follows: (1) Low flow: five-gallon or greater test measure or prover;(2) High flow: prover with a capacity that exceeds the amount of liquid delivered by the device in one minute at the maximum flow rate.; (b) A test standard that becomes damaged must be taken out of operation immediately and recalibrated prior to use. A test standard that is beyond repair must be taken out of service permanently.(c) A service company must maintain the minimum test standards per licensed device category at all times.16 Tex. Admin. Code § 97.58
Adopted by Texas Register, Volume 45, Number 35, August 28, 2020, TexReg 6087, eff. 9/1/2020; Amended by Texas Register, Volume 47, Number 08, February 25, 2022, TexReg 0913, eff. 3/1/2022