Which organizations publish Industry Standards that define tolerances?

Which organizations publish Industry Standards that define tolerances?

• A. ACI or ASTM
• B. OSHA or EPA
• C. ISO or IEC
• D. FCC or ANSI

Answer: (A)

Tolerances are set by the organizations that publish the actual standards used to judge whether work meets requirements. In concrete construction, the main sources are the American Concrete Institute and ASTM International. They publish detailed tolerances for dimensions, material properties, and testing procedures, so they are the authoritative references for what counts as acceptable deviations. Other organizations mentioned serve different purposes: OSHA and EPA focus on safety and environmental regulations, not the numeric tolerances for concrete workmanship; ISO and IEC publish international standards across many fields, but for concrete practice the practical tolerances come more directly from ACI and ASTM; the FCC handles communications regulation, and ANSI is a standards coordination body rather than the primary publisher of concrete-specific tolerances. Thus, the organizations that publish Industry Standards defining tolerances in this context are ACI and ASTM.

Tolerances are set by the organizations that publish the actual standards used to judge whether work meets requirements. In concrete construction, the main sources are the American Concrete Institute and ASTM International. They publish detailed tolerances for dimensions, material properties, and testing procedures, so they are the authoritative references for what counts as acceptable deviations. Other organizations mentioned serve different purposes: OSHA and EPA focus on safety and environmental regulations, not the numeric tolerances for concrete workmanship; ISO and IEC publish international standards across many fields, but for concrete practice the practical tolerances come more directly from ACI and ASTM; the FCC handles communications regulation, and ANSI is a standards coordination body rather than the primary publisher of concrete-specific tolerances. Thus, the organizations that publish Industry Standards defining tolerances in this context are ACI and ASTM.