Astm D 3865 – 02 pdf free download

Standard Test Method for
Plutonium in Water1

This standard is issued under the fixed designation D 3865; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

1. Scope

1.1 This test method covers the determination of alpha particle-emitting isotopes of plutonium concentrations over
0.01 Bq/L (0.3 pCi/L) in water by means of chemical separations and alpha pulse-height analysis (alpha-particle spectrometry). The isotopes, 239Pu, 240Pu, and 238Pu, are chemically
separated from a 1-L water sample by coprecipitation with
ferric hydroxide, anion exchange, and electrodeposition. The
test method applies to soluble plutonium and to suspended
particulate matter containing plutonium. In the latter situation,
an acid dissolution step is required to assure that all of the
plutonium dissolves.

1.2 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. Specific hazards are
given in Section 9

2. Referenced Documents

2.1 ASTM Standards:
C 859 Terminology Relating to Nuclear Materials2
C 1192 Test Method for Mounting Actinides for Alpha
Spectrometry Using Neodymium Fluoride3
C 1284 Practice for Electrodeposition of the Actinides for
Alpha Spectrometry2
D 1129 Terminology Relating to Water4
D 1193 Specification for Reagent Water4
D 2777 Practice for Determination of Precision and Bias of
Applicable Methods of Committee D19 on Water4
D 3084 Practice for Alpha Spectrometry of Water5
D 3370 Practices for Sampling Water4
D 3648 Practices for the Measurement of Radioactivity5
D 3856 Guide for Good Laboratory Practices in Laboratories Engaged in Sampling and Analysis of Water.