GB/T 9735-2008 (English Version) PDF

Standard No.: GB/T 9735-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 9735-2008
Replace: GB/T 9735-1988

Scope: This standard specifies a general method for converting heavy metals into sulfides in acetic acid medium and measuring them by visual colorimetry. This standard applies to the determination of heavy metals calculated as lead in chemical reagents. The detection range of saturated hydrogen sulfide aqueous solution colorimetric method is 0.3 μg/mL～2 μg/mL (calculated as Pb); the detection range of sodium sulfide-glycerol colorimetric method is 0.4 μg/mL～3 μg/mL (calculated as Pb ).

GB/T 9735-2008 Referenced Document

GB/T 602 Chemical reagent--Preparations of standard solutions for impurity
GB/T 603 Preparation of preparations and products used in chemical reagent test methods*， 2023-08-06 Update
GB/T 6682 Water for analytical laboratory use.Specification and test methods

2008 GB/T 9735-2008 Chemical reagent.General method for the determination of heavy metals
1988 GB/T 9735-1988 Chemical reagent--General method for the determination of heavy metals