Which ASTM standard addresses field collection of dried paint samples for lead determination?

Which ASTM standard addresses field collection of dried paint samples for lead determination?

• A. ASTM E 1645
• B. ASTM E 1775-96
• C. ASTM E 1729
• D. ASTM E 1979-98

Answer: (C)

This standard provides the guidelines for collecting dried paint chips in the field so that lead analysis is reliable. It covers how to obtain representative samples from painted surfaces, how many chips to collect, and how to keep them dry and uncontaminated by using clean tools and proper handling. It also specifies packaging, labeling, and transport to the lab to preserve sample integrity and maintain chain-of-custody. This direct focus on field collection of dried paint samples for lead determination is why it fits the scenario best, while other standards address different sampling media or analytical methods.

This standard provides the guidelines for collecting dried paint chips in the field so that lead analysis is reliable. It covers how to obtain representative samples from painted surfaces, how many chips to collect, and how to keep them dry and uncontaminated by using clean tools and proper handling. It also specifies packaging, labeling, and transport to the lab to preserve sample integrity and maintain chain-of-custody. This direct focus on field collection of dried paint samples for lead determination is why it fits the scenario best, while other standards address different sampling media or analytical methods.