This standard covers adjustable pipe nipples intended for use with sprinklers to permit adjustment of the distance of the sprinkler from the sprinkler system branch line.
These requirements cover sprinkler guards intended for installation in accordance with the Standard for the Installation of Sprinkler Systems, NFPA 13.
These requirements cover early suppression fast response (ESFR) sprinklers intended for installation as part of sprinkler systems for fire-protection service.
