Section 429.30 - Water closets(a)Sampling plan for selection of units for testing.(1) The requirements of § 429.11 are applicable to water closets; and(2) For each basic model of water closet, a sample of sufficient size shall be randomly selected and tested to ensure that any represented value of water consumption of a basic model for which consumers favor lower values shall be greater than or equal to the higher of: (ii) The upper 90 percent confidence limit (UCL) of the true mean divided by 1.1, where: View Image
(b)Certification reports.(1) The requirements of § 429.12 are applicable to water closets; and(2) Pursuant to § 429.12(b)(13) , a certification report shall include the following public product-specific information: The maximum water use in gallons per flush (gpf), rounded to the nearest 0.01 gallon. For dual-flush water closets, the maximum water use to be reported is the flush volume observed when tested in the full-flush mode. 76 FR 12451 , Mar. 7, 2011; 76 FR 24771 , May 2, 2011, as amended at 78 FR 62986 , Oct. 23, 2013