เคมี
เอกสารมาตรฐาน
สหรัฐอเมริกา
ASTM
D4638-16(2021)e1
Standard Guide for Preparation of Biological Samples for Inorganic Chemical Analysis
2021
6
ASTM Vol.11.01 (2023)
This guide describes procedures for the preparation of test samples collected from such locations as streams, rivers, ponds, lakes, estuaries, oceans, and toxicity tests and is applicable to such organisms as plankton, mollusks, fish, and plants. The procedures are applicable to the determination of volatile, semivolatile, and nonvolatile inorganic constituents of biological materials. Analyses may be carried out or reported on either a dry or wet basis...