แอปพลิเคชัน

1 Method Summary

Wet digestion: dissolve the sample with hydrochloric acid, nitric acid and hydrogen peroxide. Determine at 283.3 nm using air‑acetylene neutral flame.

2 Scope

Applicable to the determination of lead in aluminum alloys.

3 Reference Standard

GB 20975

3 Test Instruments

· Flame Atomic Absorption Spectrophotometer 1 set – Lead hollow cathode lamp

· Acetylene 1 cylinder Purity ≥99.99%

·  Air Compressor 1 set Rated discharge pressure: 0.3 MPa