DZ/T 0130.4-2006 The specification of testing quality management for geological laboratories. Part 4: Chemical component analysis of regional geochemical samples (for 1: 50, 000 and 1: 200, 000 geochemical mapping)
The specification of testing quality management for geological laboratories. Part 4: Chemical component analysis of regional geochemical samples (for 1: 50, 000 and 1: 200, 000 geochemical mapping)