Statutes, codes, and regulations
New Hampshire Administrative Code
Title Env - Department of Environmental ServicesSubtitle Env-Wq - Water Quality and Quantity ProgramsChapter Env-Wq 1100 - PUBLIC BATHING PLACES
Part Env-Wq 1102 - DEFINITIONS
Section Env-Wq 1102.22 - Diethylphenylene diamine (DPD)

N.H. Code Admin. R. Env-Wq 1102.22

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Current through Register No. 25, June 20, 2024
Section Env-Wq 1102.22 - Diethylphenylene diamine (DPD)

"Diethylphenylene diamine (DPD)" means a chemical testing reagent that measures bromine or free available chlorine and total chlorine, wherein the color changes from pale pink to dark red as the concentration of bromine or chlorine increases.

N.H. Code Admin. R. Env-Wq 1102.22

(See Revision Note at chapter heading for Env-Wq 1100) #8468, eff 11-1-05

Readopted with Amendments byVolume XXXIV Number 19, Filed May 8, 2014, Proposed by #10577, Effective 5/1/2014, Expires5/1/2024 See Revission note.
Amended by Volume XLI Number 19, Filed May 13, 2021, Proposed by #13198, Effective 5/1/2021, Expires 5/1/2031 (formerly Env-Wq 1102.20) (see Revision Note #3 at chapter heading for Env-Wq 1100)