Which statement best describes ASTM E 1645?

Which statement best describes ASTM E 1645?

• A. Preparation of dried paint samples for laboratory analysis
• B. Field collection of dried paint samples for lead determination
• C. Ultrasonic extraction of samples
• D. On-site testing of paint lead content

Answer: (A)

ASTM E 1645 focuses on the steps you take to get dried paint samples ready for laboratory analysis of lead. It standardizes how to dry, grind or homogenize, sieve, and package the paint material so that the lab can perform accurate and comparable lead determinations. This is a preparation step done before any lab analysis, not the field collection, a specific extraction method, or on-site testing. The other activities—collecting samples in the field, performing ultrasonic extraction, or testing on site—are governed by different standards or methods, while this standard ensures consistency in what goes into the lab for analysis.

ASTM E 1645 focuses on the steps you take to get dried paint samples ready for laboratory analysis of lead. It standardizes how to dry, grind or homogenize, sieve, and package the paint material so that the lab can perform accurate and comparable lead determinations. This is a preparation step done before any lab analysis, not the field collection, a specific extraction method, or on-site testing. The other activities—collecting samples in the field, performing ultrasonic extraction, or testing on site—are governed by different standards or methods, while this standard ensures consistency in what goes into the lab for analysis.