"Grab sample" means a sample that is taken from a waste stream without regard to the flow in the waste stream and over a period of time not to exceed 15 minutes.
N.H. Code Admin. R. Env-Wq 1202.20
#8235, eff 12-22-04 (See Revision Note at chapter heading for Env-Wq 1200) (formerly Env-Ws 1202.20 ); ss by #9798, eff 10-9-10