SN/T 3056.3-2011 (English Version) PDF

Scope: This part of SN/T 3056 specifies the methods for determination of lead content, lead oxide content, lead dioxide content, nitric acid insoluble matter content, and iron content in red lead for fireworks and firecrackers. Methods for determination of moisture content and methods for determination of particle size. This section is applicable to the determination methods of lead content, lead oxide content, lead dioxide content, nitric acid insoluble matter content, iron content and moisture content in red lead used in fireworks and firecrackers. and particle size determination methods.

SN/T 3056.3-2011 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 6003.2 Test sieves.Technical requirements and testing.Part 2:Test sieves of metal wire cloth*， 2012-12-31 Update
GB/T 6003.3 Test sieves of electroformed sheets
GB/T 6005 Test sieves.Metal wire cloth,perforated metal plate and electroformed sheet.Nominal sizes of openings
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

2011 SN/T 3056.3-2011 Determination of essential parameters of chemical raw materials for use in fireworks and firecracker. Part 3:Lead tetraoxide powder