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See Chinese contents: GB/T 21242-2019 GB/T 21242-2019: Fireworks -- Test methods of qualitative determination of prohibitive and limitative substances
This Standard specifies the reagents and solutions, sample preparation and test methods of qualitative determination of prohibitive and limitative substances of fireworks. This Standard applies to the qualitative determination of chlorate, lead compounds, arsenic compounds, mercury compounds, phosphorus, magnesium powder (except aluminum-magnesium alloy powder, modified magnesium powder), gallic acid, hexachlorobenzene, picric acid, and zirconium powder in fireworks; other single or mixed materials in pyrotechnic powder can refer it for use.
