ASTM D4902-99
Historical Standard: ASTM D4902-99 Standard Practice for Evaporation and Drying of Analytical Solutions
SUPERSEDED (see Active link, below)
ASTM D4902
1. Scope
1.1 This practice is intended for use in evaporating and drying the 100 mL portions of analytical solution, obtained in Methods D4903 and ALCA A21 and A22 so that consistent results may be obtained for the determination of total solids, soluble solids, and non-tannins in the sample. It is also intended for use in determining the moisture in the air-dry and prepared, wet, hide powders used in ALCA Method A22, and the moisture in raw and spent materials (ALCA Method A6).
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D4903 Test Method for Total Solids and Water in Vegetable Tanning Material Extracts
D6401 Test Method for Determining Non-Tannins and Tannin in Extracts of Vegetable Tanning Materials
D6402 Test Method for Determining Soluble Solids and Insolubles in Extracts of Vegetable Tanning Materials
D6403 Test Method for Determining Moisture in Raw and Spent Materials
ALCA Methods
A13 Evaporation and Drying of Analytical Solutions Official Methods of the American Leather Chemists Association. Available from the American Leather Chemists Association, University of Cincinnati, P.O. Box 210014, Cincinnati, OH 45221-0014.Keywords
drying; evaporation; moisture; tannin analysis; vegetable tannin analysis; Analytical solution; Drying or curing; Evaporators/evaporation; Liquids--leather applications; Residue; Solid phase materials--leather; Tanning analysis/materials; Vegetable-tanned leather
ICS Code
ICS Number Code 59.140.10 (Processes and auxiliary materials)
DOI: 10.1520/D4902-99
ASTM International is a member of CrossRef.
