ASTM D4940-98(2003)
Historical Standard: ASTM D4940-98(2003) Standard Test Method for Conductimetric Analysis of Water Soluble Ionic Contamination of Blasting Abrasives
SUPERSEDED (see Active link, below)
ASTM D4940
1. Scope
1.1 This test method describes a procedure for rapid evaluation of abrasives for the presence of ionic contamination by determining the total concentration of water soluble ionic contaminants by means of a conductivity test.
1.2 This test method does not identify the ionic species present nor provide quantitative results on each species.
1.3 This test method is based on a volume comparison among abrasives of similar sizes. A volume comparison is more closely related to surface area of the abrasives than is a weight comparison.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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
D1193 Specification for Reagent Water
E832 Specification for Laboratory Filter Papers
Other Standard
ISO11127-6 Preparation of Steel Substrates before Application of Paints and Related Products - Test Methods for Non-Metallic Blast Cleaning Abrasives - Part 6: Determination of Water-Soluble Contaminants by Conductivity Measurement Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.SSPC: The Society for Protective Coatings
SSPC-AB1 Specification for Mineral and Slag Abrasives Available from Society for Protective Coatings (SSPC), 40 24th St., 6th Floor, Pittsburgh, PA 15222-4656, http://www.sspc.org..Keywords
abrasive; analysis; blasting; chloride; conductimetric; conductivity; contamination; interlaboratory testing; ionogenic; precision; salts. ; steel surfaces; Abrasive blasting; Calibration; Conductance and conductivity (electrical); Conductimetric analysis; Contamination--paints/coatings applications; Field testing--paints/related coatings/materials; Interlaboratory testing--construction materials; Ionogenic contamination; Salts; Slag; Slurries; Steel surfaces; Water-soluble-matter content;
ICS Code
ICS Number Code 25.220.10 (Surface preparation)
DOI: 10.1520/D4940-98R03
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