ASTM E 203 Standard Test Method for Water Using Volumetric Karl Fischer Titration
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ASTM E 203 Document Information:
Title
Standard Test Method for Water Using Volumetric Karl Fischer Titration
ASTM International
Publication Date:
Oct 10, 2001
Scope:
Scope
This test method is intended as a general guide for the
application of the volumetric Karl
Fischer (KF) titration for determining free water and water of
hydration in most solid or liquid
organic and inorganic compounds. This test method is designed for use
with automatic titration
systems capable of determining the KF titration end point
amperometrically; however, a manual
titration method for determining the end point visually is included as
Appendix X1. Samples that
are gaseous at room temperature are not covered (see Appendix X4).
This test method covers the use
of both pyridine and pyridine-free KF reagents for determining water
by the volumetric titration.
Determination of water using KF coulometric titration is not
discussed. By proper choice of the
sample size, KF reagent concentration and apparatus, this test method
is suitable for measurement
of water over a wide concentration range, that is, parts per million
to pure water.
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
warnings are given in 3.1 and 7.3.3.
Review the current Material Safety Data Sheets (MSDS) for detailed
information concerning
toxicity, first aid procedures, and safety precautions for chemicals
used in this test procedure.
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