ASTM D7535-09(2015)

ASTM D7535-09(2015) - 1.1.2015

Significance and Use

5.1 This test method was developed to measure the concentration of ²¹⁰Pb in nonprocess water samples. This test method may be used to determine the concentration of ²¹⁰Pb in environmental samples.

1. Scope

1.1 This test method covers the determination of radioactive ²¹⁰Pb in environmental water samples (for example, drinking, non-process and effluent waters) in the range of 37 mBq/L (1.0 pCi/L) or greater.

1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information purposes only.

1.3 This method has been used successfully with tap water. It is the user's responsibility to ensure the validity of this test method for samples larger than 500 mL and for waters of untested matrices.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazards statements, see Section 9.

2. Referenced Documents

D2777-21	Standard Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water
D1193-24	Standard Specification for Reagent Water
D1129-24	Standard Terminology Relating to Water
E691-23	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
D6001-05	Standard Guide for Direct-Push Groundwater Sampling for Environmental Site Characterization
D4448-01(2019)	Standard Guide for Sampling Ground-Water Monitoring Wells
D5847-22	Standard Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis
D3370-25	Standard Practices for Sampling Water from Flowing Process Streams
D7282-24	Standard Practice for Setup, Calibration, and Quality Control of Instruments Used for Radioactivity Measurements