N.H. Code Admin. R. Env-Wq 1102.10
“Combined chlorine” means compounds formed when free chlorine combines with nitrogen or ammonia from substances introduced into chlorinated water, including but not limited to urine, suntan oils, hair spray, and perspiration.
Source. (See Revision Note #1 at chapter heading for Env-Wq 1100) #8468, eff 11-1-05; ss by #10577, eff 5-1-14 (See Revision Note #2 at chapter heading for Env-Wq 1100); ss by #13198, eff 5-1-21 (formerly Env-Wq 1102.09) (see Revision Note #3 at chapter heading for Env-Wq 1100)