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ASTM D6071-96(2000)

(Test Method)

Standard Test Method for Low Level Sodium in High Purity Water by Graphite Furnace Atomic Absorption Spectroscopy

Standard Test Method for Low Level Sodium in High Purity Water by Graphite Furnace Atomic Absorption Spectroscopy

SCOPE
1.1 This test method covers the determination of trace sodium in high purity water. The method range of concentration is 1 to 40 µg/L sodium. The analyst may extend the range once its applicability has been ascertained.
Note 1-- It is necessary to perform replicate analysis and take an average to accurately determine values at the lower end of the stated range.  
1.2 This method is a graphite furnace atomic absorption spectrophotometric method for the determination of trace sodium impurities in ultra high purity water.  
1.3 this test method has been used successfully with a high purity water matrix. It is the responsibility of the analyst to determine the suitability of the test method for other 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.

General Information

Status
Historical
Publication Date
31-Dec-1999
ICS
71.040.50 - Physicochemical methods of analysis
Technical Committee
D19 - Water
Drafting Committee
D19.03 - Sampling Water and Water-Formed Deposits, Analysis of Water for Power Generation and Process Use, On-Line Water Analysis, and Surveillance of Water
Current Stage
Ref Project

Relations

Replaces
ASTM D6071-96 - Standard Test Method for Low Level Sodium in High Purity Water by Graphite Furnace Atomic Absorption Spectroscopy
Effective Date
01-Jan-2000
Replaced By
ASTM D6071-06 - Standard Test Method for Low Level Sodium in High Purity Water by Graphite Furnace Atomic Absorption Spectroscopy
Effective Date
01-Jul-2006
Referred By
ASTM D1193-06(2018) - Standard Specification for Reagent Water
Effective Date
01-Jan-2000
Referred By
ASTM D445-21e2 - Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity)
Effective Date
01-Jan-2000

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ASTM D6071-96(2000) - Standard Test Method for Low Level Sodium in High Purity Water by Graphite Furnace Atomic Absorption SpectroscopyASTM D6071-96(2000) - Standard Test Method for Low Level Sodium in High Purity Water by Graphite Furnace Atomic Absorption Spectroscopy
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ASTM D6071-96(2000) - Standard Test Method for Low Level Sodium in High Purity Water by Graphite Furnace Atomic Absorption Spectroscopy
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D 6071–96 (Reapproved 2000)
Standard Test Method for
Low Level Sodium in High Purity Water by Graphite Furnace
1
Atomic Absorption Spectroscopy
This standard is issued under the fixed designation D 6071; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of 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 Graphite Furnace Atomic Absorption Spectrophotometry
D 4453 Practice for Handling of Ultra-Pure Water Samples
1.1 This test method covers the determination of trace
sodium in high purity water. The method range of concentra-
3. Terminology
tion is 1 to 40 µg/L sodium. The analyst may extend the range
3.1 Definitions:
once its applicability has been ascertained.
3.1.1 For definitions of terms used in this test method, refer
NOTE 1—It is necessary to perform replicate analysis and take an
to Terminology D 1129.
average to accurately determine values at the lower end of the stated
range.
4. Summary of Test Method
1.2 This test method is a graphite furnace atomic absorption
4.1 Sodium is determined by atomic absorption utilizing a
spectrophotometric method for the determination of trace
graphite furnace for sample atomization.
sodium impurities in ultra high purity water.
4.2 Asamplevolumeofseveralmicrolitres,dependingupon
1.3 This test method has been used successfully with a high
theconcentrationoftheanalyte,isdepositedonagraphitetube
2
purity water matrix. It is the responsibility of the analyst to
housed within an electrical furnace, and the system is heated in
determine the suitability of the test method for other matrices.
an inert gas environment.The sample is evaporated to dryness,
1.4 This standard does not purport to address all of the
ashed (charred or pyrolyzed), and atomized.
safety concerns, if any, associated with its use. It is the
4.3 Ground-stateatomsareproducedduringtheatomization
responsibility of the user of this standard to establish appro-
stage of the temperature program. The ground-state atoms
priate safety and health practices and determine the applica-
absorb the energy at a specific wavelength produced from a
bility of regulatory limitations prior to use.
source as they are bombarded by the energy. The amount of
energy absorbed is proportional to the concentration of the
2. Referenced Documents
analyte in the sample.
3
2.1 ASTM Standards:
4.4 The absorption signal produced during atomization is
D 1066 Practice for Sampling Steam
recorded on a chart recorder or stored in microprocessor
D 1129 Terminology Relating to Water
memory and compared to those standards taken through the
D 1192 Specification for Equipment for Sampling Water
same process by means of an analytical curve.
and Steam in Closed Conduits
4.5 A general guide for graphite furnace applications is
D 1193 Specification for Reagent Water
given in Practice D 3919.
D 2777 Practice for Determination of Precision and Bias of
5. Significance and Use
Applicable Test Methods of Committee D19 on Water
D 3370 Practices for SamplingWater from Closed Conduits
5.1 Small quantities of sodium, 1 to 10 µg/L, can be
D 3919 Practice for Measuring Trace Elements in Water by
significantinhighpressureboilersystemsandinnuclearpower
systems. Steam condensate from such systems must have less
than 10 µg/L. In addition, condensate polishing system efflu-
1
This test method is under the jurisdiction of ASTM Committee D19 on Water
ents should have less than 1 µg/L. Graphite furnace atomic
and is the direct responsibility of Subcommittee D19.03 on Sampling of Water and
absorption spectroscopy (GFAAS) represents technique for
Water-Formed Deposits, Surveillance of Water, and Flow Measurement of Water.
determining low concentrations of sodium.
Current edition approved Dec. 10, 1996. Published March 1997.
2
RP2712 Sub Program—Grab Sample Method Validation Report Results,
6. Interferences
Electric Power Research Institute, Palo Alto, CA 1987.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.1 No known interferences from other constituents are
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
found in high purity waters.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D 6071–96 (2000)
6.2 Foracompletediscussiononinterferenceswithgraphite Other grades may be used, provided it is first ascertained that
furnace procedures, refer to Practice D 3919. the reagent is of sufficiently high purity to permit its use
6.3 Sodiu
...

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