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  1. theconstructor.org › concrete › deleterious-substances-aggregate6 Types of Deleterious Substances in Aggregate - The Constructor

    Deleterious materials in aggregate are those substances which detrimentally effect the fresh and hardened properties of concrete for instance strength, workability, and long-term performance of the concrete in which such are used.

  2. www.fda.gov › regulatory-information › search-fda-guidance-documentsGuidance on Action Levels for Poisonous or Deleterious Substances

    This web page lists the action levels established by the FDA for poisonous or deleterious substances in human food and animal feed. Action levels are limits at or above which FDA will take legal action to remove products from the market.

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    • 6 Types of Deleterious Substances in Aggregate

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  4. lawphil.net › statutes › repactsREPUBLIC ACT No. 3720 - The Lawphil Project

    Section 17. (a) Any poisonous or deleterious substance added to any food, shall be deemed to be unsafe except when such substance is required or cannot be avoided in its production or manufacture.

  5. www.accessdata.fda.gov › scripts › cdrhCFR - Code of Federal Regulations Title 21 - Food and Drug...

    Mar 22, 2024 · (c) A naturally occurring poisonous or deleterious substance is a poisonous or deleterious substance that is an inherent natural constituent of a food and is not the result of...

  6. www.accessdata.fda.gov › scripts › cdrhCFR - Code of Federal Regulations Title 21 - Food and Drug...

    Mar 22, 2024 · (a) Use of an added poisonous or deleterious substance, other than a pesticide chemical, that is also a food additive, will be controlled by a regulation issued under section 409 of the act when...

  7. www.fda.gov › food › guidance-documents-regulatory-information-topic-food-andChemical, Metals, Natural Toxins & Pesticides Guidance

    Supporting Document for Guidance Levels for Radionuclides in Domestic and Imported Foods (July 29, 2004) Action Levels for Poisonous or Deleterious Substances in Human Food and Animal Feed...

  8. www.accessdata.fda.gov › scripts › cdrhCFR - Code of Federal Regulations Title 21 - Food and Drug...

    Mar 22, 2024 · SUBCHAPTER B - FOOD FOR HUMAN CONSUMPTION. Subpart A - General Provisions. § 109.3 - Definitions and interpretations. § 109.4 - Establishment of tolerances, regulatory limits, and action levels. §...