ASTM D3443-00(2020)

Standard Test Method for Chloride in Trichlorotrifluoroethane

SIGNIFICANCE AND USE
3.1 This test method determines ionizable chloride that can be aqueously extracted from trichlorotrifluoroethane.  
3.2 This test method can be used to establish production and purchasing specifications.
SCOPE
1.1 This test method covers the determination of chloride in trichlorotrifluoroethane and other halocarbons that are liquid at room temperature.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Dec-2019
• ICS: 71.080.20 - Halogenated hydrocarbons
• Technical Committee: D26 - Halogenated Organic Solvents and Fire Extinguishing Agents
• Drafting Committee: D26.04 - Test Methods

Relations

• Replaces: ASTM D3443-00(2015) - Standard Test Method for Chloride in Trichlorotrifluoroethane
• Effective Date: 01-Jan-2020
• Referred By: ASTM D4995-10(2020) - Standard Specification for Electronic and Degreasing Grades of 1,1,2–Trichloro 1,2,2,–Trifluoroethane Solvent
• Effective Date: 01-Jan-2020
• Referred By: ASTM D5248-04(2020) - Standard Specification for Reclaimed 1,1,2-Trichloro 1,2,2-Trifluoroethane
• Effective Date: 01-Jan-2020

Overview

ASTM D3443-00(2020), Standard Test Method for Chloride in Trichlorotrifluoroethane, is a widely recognized standard developed by ASTM International. This document outlines a test procedure for determining ionizable chloride that can be extracted using water from trichlorotrifluoroethane (CFC-113) and similar halocarbons that are liquid at room temperature. The method relies on aqueous extraction followed by titration to ensure accurate, repeatable results. The method applies to both production and purchasing specifications and is aligned with international standardization principles, as outlined by the World Trade Organization (WTO) Technical Barriers to Trade (TBT) Committee.

Key Topics

• Scope: The standard covers techniques for extracting and quantifying chloride ions present in trichlorotrifluoroethane and closely related halocarbon liquids at ambient temperature.
• Test Method: Involves aqueous extraction of chloride ions, followed by titration using standard mercuric acetate and s-diphenylcarbazone as an indicator.
• Measurement Units: All results are expressed in SI units, ensuring global consistency.
• Precision and Bias: Includes detailed estimations of repeatability and reproducibility for laboratory and inter-laboratory settings to guarantee reliability.
• Safety: The standard emphasizes the need for users to establish and adhere to appropriate safety, health, and environmental practices. Regulatory compliance is the responsibility of each user.

Applications

ASTM D3443-00(2020) is primarily used in the chemical and manufacturing industries for:

• Quality Control: Ensuring that trichlorotrifluoroethane and related halocarbons meet specific chloride content specifications during production and prior to purchase.
• Specification Compliance: Supporting contractual agreements by providing a reliable method for measuring chloride levels in halocarbon solvents, which can impact product purity and performance.
• Regulatory Adherence: Assuring that exported and imported materials conform to international quality standards for halocarbon solvents.
• Analytical Laboratories: Serving as a reference method for routine testing of halocarbons in accredited analytical facilities.

This standard is suitable for companies and laboratories involved with halogenated organic solvents, fire extinguishing agents, and other applications where low levels of chloride must be accurately quantified to maintain product integrity and compliance.

Related Standards

Organizations may refer to the following related standards for complementary testing and quality assurance purposes:

• ASTM D2109: Standard Test Methods for Halides in Halogenated Organic Solvents and Their Admixtures.
• ASTM D6806: Guide for Quality Control and Quality Assurance of Halocarbon Liquids.
• ASTM D3370: Standard Practices for Sampling Water.
• American Chemical Society (ACS) Specifications: For reagent grade chemicals and water purity used in analytical methods.

Utilizing ASTM D3443-00(2020) alongside these related standards supports broader quality management systems and compliance with international regulations concerning halocarbon compounds and their permitted impurity levels.

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Keywords: ASTM D3443, chloride determination, trichlorotrifluoroethane, halocarbons, CFC-113, chloride extraction, titration, quality control, halocarbon solvents, international standards.

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D3443 −00 (Reapproved 2020)
Standard Test Method for
Chloride in Trichlorotrifluoroethane
This standard is issued under the fixed designation D3443; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 5. Reagents
1.1 This test method covers the determination of chloride in
5.1 Purity of Reagents—Reagent grade chemicals shall be
trichlorotrifluoroethane and other halocarbons that are liquid at
used in all tests. Unless otherwise indicated, it is intended that
room temperature.
all reagents shall conform to the specifications of the Commit-
tee onAnalytical Reagents of theAmerican Chemical Society,
1.2 The values stated in SI units are to be regarded as
where such specifications are available. Other grades may be
standard. No other units of measurement are included in this
used, provided it is first ascertained that the reagent is of
standard.
sufficiently high purity to permit its use without lessening the
1.3 This standard does not purport to address all of the
accuracy of the determination.
safety concerns, if any, associated with its use. It is the
5.2 Purity of Water—Unless otherwise indicated, references
responsibility of the user of this standard to establish appro-
towatershallbeunderstoodtomeanhalide-freedistilledwater.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
5.3 s-Diphenylcarbazone Solution—Dissolve 0.5 g of
1.4 This international standard was developed in accor-
s-diphenylcarbazone, in 100 mL of methanol.
dance with internationally recognized principles on standard-
5.4 Silver Nitrate Solution—Dissolve 8.5 g of silver nitrate
ization established in the Decision on Principles for the
(AgNO ) in 500 mL of water.
Development of International Standards, Guides and Recom- 3
mendations issued by the World Trade Organization Technical
5.5 Standard Mercuric Acetate Solution—Dilute 40 mL of
Barriers to Trade (TBT) Committee.
stock mercuric acetate solution, reagent 2, to 1000 mL and
adjust the pH to 1.6 with nitric acid. Standardize as follows:
2. Summary of Test Method
5.5.1 Pipet 10.00 mL of standard sodium chloride solution
2.1 This test method is based on the determination of
into a 250 mL Erlenmeyer flask. Add 20 mL of chloride-free
ionizable chloride by titration with mercuric acetate solution
waterand5dropsof s-diphenylcarbazonesolution.Titratewith
using s-diphenylcarbazone as the indicator.
standard mercuric acetate solution to the faint purple end point.
Then:
3. Significance and Use
mL NaCl 31.000
5 F 5µg Cl/mL (1)
3.1 This test method determines ionizable chloride that can
mL mercuric acetate
be aqueously extracted from trichlorotrifluoroethane.
where
3.2 This test method can be used to establish production and
F = factor for the mercuric acetate solution (see 7.1).
purchasing specifications.
5.6 Standard Sodium Chloride Solution—Dissolve 0.0660 g
4. Apparatus
of sodium chloride in water and dilute to 1000 mL. Pipet
25 mL of this solution into a 1000-mL volumetric flask, dilute
4.1 Separatory Funnels, two 250 mL, with polytetra-
to volume, and mix. One millilitre of this solution contains
fluoroethylene stopcocks.
1.00 µg of chloride ion.
4.2 Erlenmeyer Flask, 125 mL.
1 2
This test method is under the jurisdiction of ASTM Committee D26 on Reagent Chemicals, American Chemical Society Specifications, American
Halogenated Organic Solvents and Fire Extinguishing Agents and is the direct Chemical Society, Washington, DC. For suggestions on the testing of reagents not
responsibility of Subcommittee D26.04 on Test Methods. li
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