ASTM D7168 - 16 - Standard Test Method for <sup>99</sup>Tc in Water by Solid Phase Extraction Disk

ASTM D7168 - 16

Standard Test Method for 99Tc in Water by Solid Phase Extraction Disk

Status : Current   Published : November 2016



1.1 This test method describes a solid phase extraction (SPE) procedure to separate  99Tc from environmental water (non-process-related or effluent water samples). Technetium-99 beta activity is measured by liquid scintillation spectrometry.

1.2 This test method is designed to measure  99Tc in the range of approximately 0.037 Bq/L (1.0 pCi/L) or greater for a one litre sample.

1.3 This test 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 1 L and for waters of untested matrices.

1.4 Technetium-99 alternatively can be determined in water samples using Practice D8026.

1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information only and are not considered standard.

1.6  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 hazard statements, see Section 9.

Standard NumberASTM D7168 - 16
TitleStandard Test Method for 99Tc in Water by Solid Phase Extraction Disk
Publication Date01 November 2016
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Disc, Disk, Liquid scintillation counting, Radioactivity, Radiochemistry, Solid phase extraction, Technetium, Water
File Size107 KB

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