The Prepation of New Quality Control Samples For The Analysis of Samples From The Southern Sumatra Geological and Mineral Exploration Project
During the course of the north sumatra project (NSP), three quality control reference materials were used GS-1.GS-2,GS-3. The samples were made by collecting a local (lembang) pozzolona derived from andesite to give the low level control sample GS-1. Porions of this material were then spiked with natural minerals to provide GS-2 (AAS high level standard) and GS-3 (high level colorimetric standard)
Ketersediaan
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Pusat Sumber Daya Mineral, Batubara dan Panas Bumi - Jln. Soekarno Hatta No. 444, Bandung, Jawa Barat
PMB LA 1991 -3