ASTM C471M-16
Standard Test Methods for Chemical Analysis of Gypsum and Gypsum Products (Metric)

Standard No.
ASTM C471M-16
Release Date
2016
Published By
American Society for Testing and Materials (ASTM)
Status
Replace By
ASTM C471M-16a
Latest
ASTM C471M-24
Scope

1.1 These test methods cover the chemical analysis of gypsum and gypsum panel products, including gypsum ready-mixed plaster, gypsum wood-fibered plaster, and gypsum concrete.

1.2 The test methods appear in the following order:

 

Sections

Preparation of Sample

4

Complete Procedure

5 – 16

Alternative Procedure for Analysis of Free Water in Gypsum Using a Moisture Balance

17

Alternative Procedure for Analysis of Combined Water in Gypsum Using a Moisture Balance

18

Alternative Procedure for Analysis for Calcium Sulfate by Ammonium Acetate Method

19

Alternative Procedure for Analysis for Sodium Chloride by the Coulometric Method

20

Determination of Sand in Set Plaster

21

Wood-Fiber Content in Wood-Fiber Gypsum Plaster

22

Optional Procedure for Analysis for Sodium by the Atomic Absorption Method