GB/T 22785-2008Determination of essential parameters of aluminum powder for use in fireworks and firecrackers (English PDF)

1 Scope

This standard specifies the fireworks with aluminum in hydrochloric acid insoluble matter content, moisture content, particle size, the content of aluminum, iron content and purity determination method.

This standard applies to fireworks with hydrochloric acid insoluble content of aluminum powder, the determination of moisture content, particle size, the content of aluminum, iron content and purity.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent

Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research

Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

Preparation of GB/T 601 chemical reagent standard titration solution

General Method GB/T 3049 Industrial chemicals determination of iron content 1,10 Philippines  spectrophotometry method (GB/T 3049-

2006, ISO 6685. 1982, IDT)

GB/T 6003.1 woven wire mesh test sieve (GB/T 6003.1-1997, ISO 3310-1.1990, NEQ)

GB/T 6003.2 Test sieves of perforated metal plate (GB/T 6003.2-1997, ISO 3310-2.1990, NEQ)

GB/T 6003.3 electroformed sheet test sieve (GB/T 6003.1-1999, ISO 3310-3.1990, NEQ)

GB/T 6005 Test sieves - Metal wire cloth, perforated plate, electrical sheet - basic mesh size (GB/T 6005-1997,

ISO 565.1990, NEQ)

GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)

GB/T 8170 repair value expressed about the rules and limit values and judgment

3 Determination