ASTM E1754-17

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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.
Designation: E1754 − 08 E1754 − 17
Standard Test Method for
Determination of Low Levels of Water in Liquid Chlorine By
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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*
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 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)(SDS) for detailed information concerning toxicity, first aid
procedures, and safety precautions.
2. Referenced Documents
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2.1 ASTM Standards:
D1193 Specification for Reagent Water
E806 Test Method for Carbon Tetrachloride and Chloroform in Liquid Chlorine by Direct Injection (Gas Chromatographic
Procedure)
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2.2 Federal Standards:
49 CFR 173 Code of Federal Regulations Title 49 Transportation: Shippers’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
must be known to prevent problems during its use.
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This test method is under the jurisdiction of ASTM Committee D16 on Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of Subcommittee
D16.16 on Industrial and Specialty Product Standards.
Current edition approved April 1, 2008March 1, 2017. Published May 2008March 2017. Originally approved in 1995. Last previous edition approved in 20012008 as
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E1754 – 95 (2001)08. . DOI: 10.1520/E1754-08.10.1520/E1754-17.
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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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
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Available from U.S. Government Printing Office, Superintendent of Documents, Government Printing Office, 732 N. Capitol St., NW, Washington, DC
20402.20401-0001, http://www.access.gpo.gov.
*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
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E1754 − 17
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.
5.2.1 Silver Chloride Windows, Hastelloy C and 316 Stainless Ste
...