ASTM D 5543 Standard Test Methods for Low-Level Dissolved Oxygen in Water
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ASTM D 5543 Document Information:
Title
Standard Test Methods for Low-Level Dissolved Oxygen in Water
ASTM International
Publication Date:
Nov 15, 1994
Scope:
These test methods cover the determination of low-level
(<100µ g/L) dissolved oxygen in
thermal-cycle steam condensate, deaerated boiler feedwater, boiler
water, and deaerated deionized
water. The following test methods are included:
These test methods may be applicable to electronic-grade,
pharmaceutical-grade, and other
high-purity waters, although these were not addressed in the
collaborative study.
Test Method A is a colorimetric procedure applicable to dissolved
oxygen in water in the range from
0 to 100 µg/L.
Test Method B is an instrumented colorimetric procedure applicable to
dissolved oxygen in water in
the range from 0 to 100 µg/L.
It is the user's responsibility to ensure the validity of these test
methods for waters of untested
matrices.
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:
- ampoules
- bichromatic instrument
- boiler
- boiler feed-water
- colorimetric analysis
- dissolved oxygen
- oxygen
- oxygen-sensitive indicator
- steam
- steam condensate
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