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Significance and Use
The amount of lead drier used in oxidizing-type coatings significantly affects their drying properties. This test method may be used to confirm the stated lead content of pure liquid lead drier soluble in glacial acetic acid and manufactured for use by the coatings industry.
1.1 This test method covers a titrimetric determination of lead in liquid paint driers that can be dissolved in glacial acetic acid and utilizes the disodium salt of ethylenediaminetetraacetic acid dihydrate (EDTA).
1.2 This test method is not applicable to drier blends. If driers other than cobalt are present, they may interfere by reacting with EDTA under the conditions used for analysis.
1.3 All cations that can be titrated with EDTA in alkaline media interfere and must not be present in the sample.
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.5 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.
D600 Specification for Liquid Paint Driers
D1193 Specification for Reagent Water
E180 Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals
E300 Practice for Sampling Industrial Chemicals
ICS Number Code 87.060.99 (Other paint ingredients)
UNSPSC Code 31211603(Paint driers)