Which standard evaluates the performance of on-site extraction and field-portable electrochemical or spectrophotometric analysis for lead?

Which standard evaluates the performance of on-site extraction and field-portable electrochemical or spectrophotometric analysis for lead?

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

Answer: (C)

The main concept being tested is how to judge the reliability of on-site sampling and field-portable analysis for lead when the sample is extracted in the field and measured with portable electrochemical or colorimetric (spectrophotometric) methods. ASTM E 1775-96 is the standard guide that provides the framework for evaluating the performance of these exact field methods. It outlines how to assess whether on-site extraction procedures and portable analytical devices give accurate and precise lead results under field conditions, considering factors like detection limits, potential interferences, repeatability, and practical field constraints. In other words, it tells you how to validate that the combination of on-site extraction and portable electrochemical or spectrophotometric analysis works reliably for lead. Other standards in the set address different contexts—such as lab-based testing, different matrices, or other instruments—which do not specifically target the performance evaluation of on-site extraction paired with field-portable electrochemical or spectrophotometric lead analysis.

The main concept being tested is how to judge the reliability of on-site sampling and field-portable analysis for lead when the sample is extracted in the field and measured with portable electrochemical or colorimetric (spectrophotometric) methods.

ASTM E 1775-96 is the standard guide that provides the framework for evaluating the performance of these exact field methods. It outlines how to assess whether on-site extraction procedures and portable analytical devices give accurate and precise lead results under field conditions, considering factors like detection limits, potential interferences, repeatability, and practical field constraints. In other words, it tells you how to validate that the combination of on-site extraction and portable electrochemical or spectrophotometric analysis works reliably for lead.

Other standards in the set address different contexts—such as lab-based testing, different matrices, or other instruments—which do not specifically target the performance evaluation of on-site extraction paired with field-portable electrochemical or spectrophotometric lead analysis.