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Significance and Use
5.1 This acid extraction method is intended to indicate the solubility of metals from art materials in a weak acid medium. This test method may be useful as one indicator of the amount of metal that is readily available for absorption. It is not meant as a replacement for in vivo tests of absorption of a metal.6 Other relevant information, when available, should be included in the overall toxicological assessment of metal-containing art materials, such as physico-chemical properties, toxicokinetics (absorption, distribution, metabolism and excretion), and mechanisms of toxicity of the metal(s) of interest.
5.2 Maximum levels of metal extraction are seen with this test method when results are 250 ppm or less. If results are greater than 250 ppm, the extractant volume should be increased to 100 mL.7
1.1 This test method covers the extraction of metals from art materials using an extractant that simulates the acid potential of gastric juice. This test method is similar to the extraction method in Specification F963, except that it requires conducting extraction steps at body temperature instead of at room temperature. The extraction procedure specified in this test method is more rigorous than that noted in Specification F963 because the procedure causes the extraction of a larger quantity of metal.
1.2 This test method is adapted from the European Toy Safety Standard, EN 71-3:1994 but differs from it in that a solvent extraction step is not required for processing waxes or oil-based products and no specific acceptable metal levels are specified.
1.3 The rational for this test method is discussed in Appendix X1.
1.4 This test method should be used on the art material as a whole and not an art material ingredient. Testing the art material as whole would be expected to give a more accurate estimate of soluble metal than from an extrapolation from testing ingredients.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 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.
International StandardsEN 71-3:1994 Safety of Toys ISO 3696 Water for Laboratory Use--Specifications ISO 3856 Paints and Varnishes--Determination of Soluble Metal Content Part 1: Determination of lead content--Flame atomic absorption spectrometric method and dithiazone spectrophotometric method Part 2: Determination of antimony content--Flame atomic absorption spectrophotometric method and Rhodamine B spectrophotometric method Part 3: Determination of barium content--Flame atomic emission spectrometric method Part 4: Determination of cadmium content--Flame atomic absorption spectrometric method and polarographic method Part 5: Determination of hexavalent chromium content of the pigment portion of the liquid paint or the paint in powder form--Diphenylcarbazide spectrophotometric method Part 6: Determination of total chromium content of the liquid portion of paint--Flame atomic absorption spectrometric method
D4236 Practice for Labeling Art Materials for Chronic Health Hazards
E180 Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals
E456 Terminology Relating to Quality and Statistics
F963 Consumer Safety Specification for Toy Safety
ICS Number Code 97.195 (Items of art and handicraft)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D5517-14, Standard Test Method for Determining Extractability of Metals from Art Materials, ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top