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
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Sunday, 18 February 2018
LEAD STANDARD SOLUTION [0.1 % pb]
METHOD OF PREPARATION:
Dissolve 0.4 gm of lead [II] nitrate in sufficient water
containing 2 ml of nitric acid to produce 250 ml.
[Store this solution at room temperature in
Borosil glass bottles with well-fitted suitable stopper.]
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