ASTM E1754-08
(Test Method)Standard Test Method for Determination of Low Levels of Water in Liquid Chlorine By Infrared Spectrophotometry
Standard Test Method for Determination of Low Levels of Water in Liquid Chlorine By Infrared Spectrophotometry
SIGNIFICANCE AND USE
Trace amounts of water may be detrimental to the use of chlorine in some applications. The amount of water in the chlorine must be known to prevent problems during its use.
SCOPE
1.1 This test method covers the determination of the content of water in liquid chlorine in the concentration range of 0.5 to 15 mg/kg (ppm).
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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. See Section 7 for specific hazards statements.
1.4 Review the current Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions.
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Designation: E1754 − 08
Standard Test Method for
Determination of Low Levels of Water in Liquid Chlorine By
1
Infrared Spectrophotometry
This standard is issued under the fixed designation E1754; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 173.304 Charging of Cylinders with Liquefied Compressed
Gas
1.1 This test method covers the determination of the content
173.314 Requirements for Compressed Gases in Tank Cars
of water in liquid chlorine in the concentration range of 0.5 to
173.315 Compressed Gases in Cargo Tanks and Portable
15 mg/kg (ppm).
Tank Containers
1.2 The values stated in SI units are to be regarded as
standard. The values given in parentheses are for information
3. Summary of Test Method
only.
3.1 A sample of liquid chlorine is introduced into a special
1.3 This standard does not purport to address all of the
infrared cell and maintained as a liquid under its own pressure.
safety concerns, if any, associated with its use. It is the
A spectrometer scans from 400 to 4400 wavenumbers of the
responsibility of the user of this standard to establish appro-
infrared transmission spectrum of liquid chlorine. This spec-
priate safety and health practices and determine the applica-
trum is then ratioed to one obtained of the nitrogen-filled
bility of regulatory limitations prior to use. See Section 7 for
infrared cell previously. The ratioed spectrum is converted to
specific hazards statements.
absorbance, and the net absorbance of the water band at 1596
1.4 ReviewthecurrentMaterialSafetyDataSheets(MSDS)
wavenumbers, relative to a reference at 1663 wavenumbers, is
for detailed information concerning toxicity, first aid
determined. The amount of water corresponding to this net
procedures, and safety precautions.
absorbance is determined from a calibration curve prepared
from the infrared absorbances of standards that contain known
2. Referenced Documents
concentrations of water in liquid chlorine.
2
2.1 ASTM Standards:
D1193 Specification for Reagent Water
4. Significance and Use
E806 Test Method for Carbon Tetrachloride and Chloroform
4.1 Trace amounts of water may be detrimental to the use of
in Liquid Chlorine by Direct Injection (Gas Chromato-
chlorine in some applications. The amount of water in the
graphic Procedure)
chlorine must be known to prevent problems during its use.
3
2.2 Federal Standards:
49 CFR 173 Code of Federal Regulations Title 49 Trans-
5. Apparatus
portation: Shippers’ General Requirements for Shipments
5.1 Infrared Spectrometer, capable of measurements in the
and Packaging, including Sections:
1600 wavenumber region. An FTIR with 4 wavenumber
resolution is the instrument of choice, but dispersive instru-
1
This test method is under the jurisdiction of ASTM Committee D16 on
ments may also be used to achieve similar results.
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
Subcommittee D16.16 on Industrial and Specialty Product Standards. 5.2 Special Infrared Cell (see Fig. 1), neither cell size nor
Current edition approved April 1, 2008. Published May 2008. Originally
pathlength are critical to the analysis, but sensitivity and limit
ε1
approved in 1995. Last previous edition approved in 2001 as E1754– 95 (2001) .
of detection are dependent on pathlength. The concentration
DOI: 10.1520/E1754-08.
2
range reported in the scope is achievable with a 60-mm
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
pathlength cell constructed with:
Standards volume information, refer to the standard’s Document Summary page on
5.2.1 Hastelloy C and 316 Stainless Steel Stock, suitable for
the ASTM website.
3 machining.
Available from Superintendent of Documents, Government Printing Office,
5.2.2 Silver Chloride Windows, 0.5 by 2.5 cm.
Washington, DC 20402.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E1754 − 08
FIG. 1(a) Pipe Adapter
NOTE 1—Drawing not to scale.
FIG. 1 Infrared Cell
2
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E1754 − 08
FIG. 1(d) Gasket Detail
FIG. 1(b) Air Cap Detail
FIG. 1(e) Insert Detail
FIG. 1(f) Flange Detail
FIG. 1(c) Body Detail
3
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E1754 − 08
5.2.3 Perfluoroelastomer Sheet, 0.030 in. thickness. 6. Reagents
1 1
5.3 Ball Valves, Monel ⁄4 in. valve with pipe and ⁄4 in. t
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
e1
Designation:E1754 –95 (Reapproved 2001) Designation:E1754 –08
Standard Test Method for
Determination of Low Levels of Water in Liquid Chlorine By
1
Infrared Spectrophotometry
This standard is issued under the fixed designation E 1754; 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
e NOTE—Editorial changes were made in August 2001.
1. Scope*
1.1 This test method covers the determination of the content of water in liquid chlorine in the concentration range of 0.5 to 15
mg/kg (ppm).
1.2
1.2
1.3 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. See Section 7 for specific hazards statements.
1.34 Review the current Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures,
and safety precautions.
2. Referenced Documents
2.1 ASTM Standards:
2
D1193Specification for Reagent Water
E180Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial Chemicals
D 1193 Specification for Reagent Water
E 806 Test Method for Carbon Tetrachloride and Chloroform in Liquid Chlorine by Direct Injection (Gas Chromatographic
Procedure)
3
2.2 Federal Standards:
49CFR 49 CFR 173 Code of Federal Regulations Title 49 Transportation: Shippers’ General Requirements for Shipments and
Packaging, including Sections:
173.304 Charging of Cylinders with Liquefied Compressed Gas
173.314 Requirements for Compressed Gases in Tank Cars
173.315 Compressed Gases in Cargo Tanks and Portable Tank Containers
3. Summary of Test Method
3.1 A sample of liquid chlorine is introduced into a special infrared cell and maintained as a liquid under its own pressure. A
spectrometer scans from 400 to 4400 wavenumbers of the infrared transmission spectrum of liquid chlorine. This spectrum is then
ratioed to one obtained of the nitrogen-filled infrared cell previously. The ratioed spectrum is converted to absorbance, and the net
absorbance of the water band at 1596 wavenumbers, relative to a reference at 1663 wavenumbers, is determined. The amount of
water corresponding to this net absorbance is determined from a calibration curve prepared from the infrared absorbances of
standards that contain known concentrations of water in liquid chlorine.
4. Significance and Use
4.1 Trace amounts of water may be detrimental to the use of chlorine in some applications.The amount of water in the chlorine
1
This test method is under the jurisdiction of ASTM Committee E15 on Industrial and Specialty Chemicals and is the direct responsibility of Subcommittee E15.02 on
Product Standards.
Current edition approved Sept. 10, 1995. Published December 1995.
e1
Current edition approved April 1, 2008. Published May 2008. Originally approved in 1995. Last previous edition approved in 2001 as E1754–95(2001) .
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 11.01.volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Annual Book of ASTM Standards, Vol 15.05.
3
Available from Superintendent of Documents, Government Printing Office, Washington, DC 20402.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
E1754 –08
must be known to prevent problems during its use.
5. Apparatus
5.1 Infrared Spectrometer, capable of measurements in the 1600 wavenumber region.An FTIR with 4 wavenumber resolution
is the instrument of choice, but dispersive instruments may also be used to achieve similar results.
5.2 Special Infrared Cell (see Fig. 1), neither cell size nor pathlength are critical to the analysis, but sensitivity and limit of
detection are dependent on pathlength. The concentration range reported in the scope is achievable with a 60-mm pathlength cell
constructed with:
5.2.1 Hastelloy C and 316 Stainless Steel Stock, suitable for machining.
5.2.2 Silver Chloride Windows, 0.5 by 2.5 c
...
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