National Accreditation Board for Testing & Calibration Laboratories (NABL) is an autonomous society providing Accreditation (Recognition) of Technical competence of a testing, calibration, medical laboratory & Proficiency testing provider (PTP) & Reference Material Producer (RMP) for a specific scope
Dilute 10 ml of 0.0741% w/v solution of Ammonium Chloride to 25.0 ml with
ammonia free water. Dilute 1 volume of this solution to 100 volumes with
ammonia free water immediately before use.
[Store this solution at room temperature in Borosil
glass bottles with well-fitted suitable stopper.
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