SN/T 3056.7-2011 (English Version) PDF

Scope: This part of SN/T 3056 specifies the determination methods of copper content, iron content, water-insoluble matter content and pH value in copper sulfate for fireworks and firecrackers. This section is applicable to the determination of copper content, iron content, water-insoluble matter content and pH value in copper sulfate used in fireworks and firecrackers.

SN/T 3056.7-2011 Referenced Document

GB/T 3049 Chemical products for industrial use. General method for determination of iron content 1, 10 Phenanthroline spectrophotometric method
GB/T 6003.1 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth*， 2022-10-12 Update
GB/T 601 Chemical reagent.Preparations of reference titration solutions*， 2016-10-13 Update
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
HG/T 3696.1 Inorganic chemicals for industrical use Preparations of standard and reagent solutions for chemical analysis.Part 1:Preparations of standard volumetric solutions *， 2011-12-20 Update
HG/T 3696.2 Inorganic chemicals for industrical use.Preparations of standard and reagent solutions for chemical analysis.Part 2: Preparations of standard solutions for impurity *， 2011-12-20 Update
HG/T 3696.3 Inorganic chemicals for industrical use.Preparations of standard and reagent solutions for chemical analysis.Part 3: Preparations of reagent solutions *， 2011-12-20 Update

2011 SN/T 3056.7-2011 Determination of essential parameters of chemical raw materials for use in fireworks and firecrackers.Part 7:Cupric sulphate