Which organization publishes national standards for the testing and quality assurance of hazardous materials?

• A. National Institute of Standards and Technology
• B. World Health Organization
• C. American Chemical Society
• D. American Society for Testing Materials

Answer: (D)

Standards-setting bodies publish uniform methods for testing and quality assurance to ensure consistency, safety, and regulatory compliance when handling hazardous materials. Among the options, ASTM International is the organization that publishes national standards for testing and quality assurance of hazardous materials. It develops and maintains standardized test methods, practices, and specifications used across industries to verify material performance and safety.

NIST focuses on measurement standards and reference materials rather than the broad set of national testing standards for hazardous materials. The World Health Organization provides health guidelines, not the national testing standards for hazardous materials. The American Chemical Society is a professional society with many resources, but it does not serve as the primary publisher of national testing standards for hazardous materials.