ASTM D2110-00(2022)
(Test Method)Standard Test Method for pH of Water Extractions of Halogenated Organic Solvents and Their Admixtures
Standard Test Method for pH of Water Extractions of Halogenated Organic Solvents and Their Admixtures
SIGNIFICANCE AND USE
3.1 The pH of halogenated solvents varies according to the nature of stabilizers in the particular solvent. Solvents with alkaline stabilizers (amine-types) generally have pHs in the 7 to 11 range, whereas solvents containing neutral stabilizers (epoxide-types) generally have pHs in the 5 to 7 range.
3.2 Virgin and reclaimed solvents should have pHs within these ranges, dependent upon the claimed method of stabilization. These values should be within the accepted limits as proposed by the producers of the original virgin solvent.
3.3 A lowering of pH from the above values, on receipt or use, is cause for concern. In this event, solvents having epoxide stabilizers should be tested for acid acceptance; solvent having alkaline stabilizers should be tested for alkalinity.
SCOPE
1.1 This test method covers the measurement of the pH of water extractions of halogenated organic solvents and admixtures thereof. This test method is applicable for the determination of the pH of water extractions of virgin, reclaimed, or used solvents.
1.2 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.
1.3 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
- 30-Apr-2022
- Technical Committee
- D26 - Halogenated Organic Solvents and Fire Extinguishing Agents
- Drafting Committee
- D26.04 - Test Methods
Overview
ASTM D2110-00(2022), titled Standard Test Method for pH of Water Extractions of Halogenated Organic Solvents and Their Admixtures, provides a standardized procedure for measuring the pH of water extractions from halogenated organic solvents. This method is applicable to virgin, reclaimed, and used solvents, supporting quality control and regulatory compliance in industries where these solvents are utilized. Developed by ASTM International, the standard aligns with globally recognized principles to facilitate consistency and reliability in laboratory testing.
Maintaining proper pH levels in halogenated solvents is crucial for both performance and safety. The choice of stabilizer, such as amine (alkaline) or epoxide (neutral), directly affects a solvent's pH range, with deviations potentially indicating contamination or degradation.
Key Topics
Purpose of the Test Method
- Determines the pH of water extractions to assess solvent purity and suitability.
- Identifies pH deviations, which may signal chemical instability or contamination.
Applicable Solvents
- Covers halogenated organic solvents and their admixtures.
- Relevant for virgin, reclaimed, and used solvent samples.
Testing Procedures
- Procedure A: Uses a universal indicator and pH color chart for qualitative analysis.
- Procedure B: Employs a calibrated pH meter for quantitative measurement.
Significance of pH Ranges
- Alkaline Stabilizers (amine-types): Expected pH between 7 and 11.
- Neutral Stabilizers (epoxide-types): Expected pH between 5 and 7.
- Significant drops in pH can indicate the need for further testing of acid acceptance (epoxide) or alkalinity (amine).
Safety and Compliance
- Users are responsible for evaluating safety, health, and regulatory implications regarding solvent handling and waste management.
Applications
- Quality Control: Ensures that halogenated solvents used in manufacturing, laboratory, and industrial processes meet specified pH criteria, supporting product performance and regulatory standards.
- Solvent Recovery Operations: Monitors the quality of reclaimed solvents, helping to verify that they are within accepted stabilizer-based pH ranges.
- Environmental Health and Safety: Assists in hazard identification by flagging abnormal pH readings that could indicate contamination or chemical decomposition.
- Regulatory Compliance: Alignment with international standardization facilitates cross-border trade and adherence to environmental regulations.
Related Standards
- ASTM D2989: Standard Test Method for Acidity-Alkalinity of Halogenated Organic Solvents
- ASTM D2109: Standard Test Method for Water in Halogenated Organic Solvents
- ISO 5667: International standards for water quality sampling and testing
- ASTM D3703: Related procedures for pH measurement in various matrices
Keywords: pH testing, halogenated organic solvents, ASTM D2110, solvent quality, water extraction, solvent stabilizers, laboratory methods, industrial solvents, environmental compliance
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Frequently Asked Questions
ASTM D2110-00(2022) is a standard published by ASTM International. Its full title is "Standard Test Method for pH of Water Extractions of Halogenated Organic Solvents and Their Admixtures". This standard covers: SIGNIFICANCE AND USE 3.1 The pH of halogenated solvents varies according to the nature of stabilizers in the particular solvent. Solvents with alkaline stabilizers (amine-types) generally have pHs in the 7 to 11 range, whereas solvents containing neutral stabilizers (epoxide-types) generally have pHs in the 5 to 7 range. 3.2 Virgin and reclaimed solvents should have pHs within these ranges, dependent upon the claimed method of stabilization. These values should be within the accepted limits as proposed by the producers of the original virgin solvent. 3.3 A lowering of pH from the above values, on receipt or use, is cause for concern. In this event, solvents having epoxide stabilizers should be tested for acid acceptance; solvent having alkaline stabilizers should be tested for alkalinity. SCOPE 1.1 This test method covers the measurement of the pH of water extractions of halogenated organic solvents and admixtures thereof. This test method is applicable for the determination of the pH of water extractions of virgin, reclaimed, or used solvents. 1.2 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. 1.3 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.
SIGNIFICANCE AND USE 3.1 The pH of halogenated solvents varies according to the nature of stabilizers in the particular solvent. Solvents with alkaline stabilizers (amine-types) generally have pHs in the 7 to 11 range, whereas solvents containing neutral stabilizers (epoxide-types) generally have pHs in the 5 to 7 range. 3.2 Virgin and reclaimed solvents should have pHs within these ranges, dependent upon the claimed method of stabilization. These values should be within the accepted limits as proposed by the producers of the original virgin solvent. 3.3 A lowering of pH from the above values, on receipt or use, is cause for concern. In this event, solvents having epoxide stabilizers should be tested for acid acceptance; solvent having alkaline stabilizers should be tested for alkalinity. SCOPE 1.1 This test method covers the measurement of the pH of water extractions of halogenated organic solvents and admixtures thereof. This test method is applicable for the determination of the pH of water extractions of virgin, reclaimed, or used solvents. 1.2 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. 1.3 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.
ASTM D2110-00(2022) is classified under the following ICS (International Classification for Standards) categories: 71.080.20 - Halogenated hydrocarbons. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM D2110-00(2022) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
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: D2110 − 00 (Reapproved 2022)
Standard Test Method for
pH of Water Extractions of Halogenated Organic Solvents
and Their Admixtures
This standard is issued under the fixed designation D2110; 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 tion. These values should be within the accepted limits as
proposed by the producers of the original virgin solvent.
1.1 This test method covers the measurement of the pH of
water extractions of halogenated organic solvents and admix- 3.3 A lowering of pH from the above values, on receipt or
tures thereof. This test method is applicable for the determina- use, is cause for concern. In this event, solvents having epoxide
tion of the pH of water extractions of virgin, reclaimed, or used stabilizers should be tested for acid acceptance; solvent having
solvents. alkaline stabilizers should be tested for alkalinity.
1.2 This standard does not purport to address all of the
4. Apparatus
safety concerns, if any, associated with its use. It is the
4.1 Universal Indicator and pH Indicator Color Chart
responsibility of the user of this standard to establish appro-
(Procedure A), or
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
4.2 pH Meter (Procedure B).
1.3 This international standard was developed in accor-
5. Water
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
5.1 Neutral Distilled or Deionized Water shall be prepared
Development of International Standards, Guides and Recom-
as follows: Boil 1 Lof distilled or deionized water for 5 min in
mendations issued by the World Trade Organization Technical
a borosilicate glass or stainless steel container, then cover and
Barriers to Trade (TBT) Committee.
cool to room temperature.
5.2 Procedure A—To a 50 mL aliquot of the cooled, boiled
2. Summary of Test Method
water, add 2 mL of Universal Indicator. Titrate the aliquot to a
2.1 The solvent sample is shaken with freshly boiled neutral
pH of 7 (as indicated by comparing the color of the aliquot to
distilled or deionized water and the pH of the water extract
the color chart in accordance with manufacturer’s instructions)
determined by one of two procedures:
with either 0.01N HCl if the pH is above 7 or 0.01 N NaOH if
2.1.1 ProcedureA, by comparing the color formed upon the
the pH is below 7, and record the titer. From this titer, calculate
addition of Universal Indicator with that of a calibrated pH
and add the volume of 0.01 N NaOH or 0.01 N HCl required
Indicator Color Chart, or
to adjust the remaining 950 mL of the boiled distilled or
2.1.2 Procedure B, using a glass electrode pH meter.
deionized water to a pH of 7. The amount of 0.01 N NaOH or
0.01N HCl needed to neutralize the 950 mLwater will be 19 X
3. Significance and Use
titer. Determine the pH of a second aliquot. If further adjust-
3.1 The pH of halogenated solvents varies according to the
ment is necessary to obtain a pH of 7, repeat the above
nature of stabilizers in the particular solvent. Solvents with
procedure.
alkaline stabilizers (amine-types) generally have pHs in the 7
5.3 Procedure B—Using a pH meter, titrate a 50 mL aliquot
to 11 range, whereas solvents containing neutral stabilizers
to a pH of 7.0 to 7.3 with either 0.01N HCl if the pH is above
(epoxide-types) generally have pHs in the 5 to 7 range.
7.0 or 0.01 N NaOH if t
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