Test Substance

{
  "id": "MLC-T-ENV-027878",
  "term": "Test Substance",
  "field": "Environment",
  "definition": "1. Substance or mixture administered or added to a test system in a study, which substance or mixture:(1) Is the subject of an application for a research or marketing permit supported by the study, or is the contemplated subject of such an application; or(2) Is an ingredient, impurity, degradation product, metabolite, or radioactive isotope of a substance described by paragraph (1) of this definition, or some other substance related to a substance described by that paragraph, which is used in the study to assist in characterizing the toxicity, metabolism, or other characteristics of a substance described by that paragraph.\n\n2. Vapor and/or aerosol mixture composed of engine/motor vehicle emissions and clean, filtered air which is administered directly, or indirectly, by the inhalation route to a test system in a study which develops data to meet the registration requirements of CAA section 211(b) or (e).\n\n3. Substance or mixture administered or added to a test system in a study, which substance or mixture is used to develop data to meet the requirements of a TSCA section 4(a) test rule and/or is developed under a TSCA section 4 testing consent agreement or section 5 rule or order to the extent the agreement, rule or order references this part.\n\n4. Form of chemical substance or mixture that is specified for use in testing.",
  "references": [
    "40 CFR 160.3 (CFR 2013)",
    "40 CFR 79.63 (CFR 2013)",
    "40 CFR 792.3 (CFR 2013)",
    "40 CFR 790.3 (CFR 2013)"
  ],
  "url": "https://mlchart.com/terminology/environment/test-substance/"
}