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ASTM D 5542 Document Information:
Title
Standard Test Methods for Trace Anions in High Purity Water by Ion Chromatography
ASTM International
Publication Date:
Jun 1, 2004
Scope:
These test methods cover the determination of trace (µg/L)
levels of fluoride, acetate,
formate, chloride, phosphate, and sulfate in high purity water using
ion chromatography in
combination with sample preconcentration. Other anions, such as
bromide, nitrite, nitrate, sulfite,
and iodide can be determined by this method. However, since they are
rarely present in significant
concentrations in high purity water, they are not included in this
test method. Two test methods
are presented and their ranges of application, as determined by a
collaborative study, are as
follows:
It is the user's responsibility to ensure the validity of these test
methods for waters of untested
matrices.
The common practical range of Test Method A is as follows: chloride, 1
to 100 µg/L,
phosphate, 3 to 100 µg/L, and sulfate, 2 to 100 µg/L.
The common practical range of Test Method B is as follows: fluoride, 1
to 100 µg/L, acetate,
10 to 200 µg/L, and formate, 5 to 200 µg/L.
The values stated in SI units are to be regarded as the standard.
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.
Keywords:
- anion
- eluant
- ion chromatography
- trace
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