 | Bioavailability – the extent that a substance can be absorbed in a biologically active form. |
| Certifying Organization – May be funded by member manufacturers but should include users or their representatives as well as manufacturers’ chemists on its technical and certifying committee. In cases where there is disagreement by participating users with the determination of the toxicologist(s) there should be a method whereby the toxicologist’s decision can be presented to an advisory board of toxicologists for review. |
| Chronic Adverse Health Effect(s) – a persistent toxic effect(s) that develops over time from a single, prolonged, or repeated exposure to a substance. This effect may result from exposure(s) to a substance that can, in humans, cause sterility, birth defects, harm to the developing fetus or nursing infant, cancer, allergenic sensitizations, damage to the nervous system, or a persistent adverse effect to any other organ system. |
| Chronic Health Hazard/Chronic Hazard – a health risk to humans resultant from exposure to a substance that may cause a chronic adverse health effect. |
| Determination of Labeling (by a toxicologist) – An art material is considered to have the potential for producing chronic adverse health effects if any customary or reasonable foreseeable use can result in a chronic hazard. |
| Enforceable Items – Including but not limited to paints, crayons, coloured pencils, glues, adhesives and putties in decorative art, craft, model, or hobby items. |
| List of Sensitizing Components – To protect users from known sensitizers found within art materials, each label shall contain a list of those sensitizers present in sufficient amounts to contribute to a known skin or respiratory sensitization. |
| Name of Chronically Hazardous Components – All components and known decomposition products of the formulation with a potential for chronic hazards shall be listed prominently. Generic equivalent names may be used. |
| Sensitizer – a substance known to cause, through an allergic reaction, a chronic adverse health effect that becomes evident in a significant number of people on re-exposure to the same substance. |
| Strong Sensitizer – Based on the frequency and severity of the reaction with a significant potential for causing hypersensitivity. |
| Toxic – applies to any substance that is likely to produce personal injury or illness to humans through ingestion, inhalation, or skin contact. |
| Toxicologist – an individual who, through education, training, and experience, has expertise in the field of toxicology as it relates to human exposure and is either a toxicologist or physician certified by a nationally recognized certification board. |
| Unenforceable Items – Products whose intended purpose is not to create art (e.g. common wood pencils and single coloured pens, markers, and chalk) unless the product is specifically packaged, promoted, or marketed in a manner that would lead a reasonable person to conclude that it is intended for use as an art material. |