ASTM D4940-10 Standard Test Method for Conductimetric Analysis of Water Soluble Ionic Contamination of Blasting Abrasives
ASTM International / 01-Jun-2010 / 3 pages ASTM D4940-10 pdf
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 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. ASTM D4940-10, 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.
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 Number Code 25.220.10 (Surface preparation), ASTM D4940-10.