ASTM D2110-00(2017)
(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.
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Designation: D2110 − 00 (Reapproved 2017)
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
responsibility of the user of this standard to establish appro- 4.1 Universal Indicator and pH Indicator Color Chart
priate safety, health, and environmental practices and deter-
(Procedure A), or
mine the applicability of regulatory limitations prior to use.
4.2 pH Meter (Procedure B).
1.3 This international standard was developed in accor-
dance with internationally recognized principles on standard-
5. Water
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.
2. Summary of Test Method
5.2 Procedure A—To a 50–mL aliquot of the cooled, boiled
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
thecolorchartpermanufacturer’sinstructions)witheither0.01
determined by one of two procedures:
N HCl if the pH is above 7 or 0.01 N NaOH if the pH is below
2.1.1 ProcedureA, by comparing the color formed upon the
7, and record the titer. From this titer, calculate and add the
addition of Universal Indicator with that of a calibrated pH
volume of 0.01 N NaOH or 0.01 N HCl required to adjust the
Indicator Color Chart, or
remaining 950 mL of the boiled distilled or deionized water to
2.1.2 Procedure B, using a glass electrode pH meter.
a pH of 7. The amount of 0.01 N NaOH or 0.01 N HCl needed
3. Significance and Use toneutralizethe950mLwaterwillbe19Xtiter.Determinethe
pH of a second aliquot. If further adjustment is necessary to
3.1 The pH of halogenated solvents varies according to the
obtain a pH of 7, repeat the above procedure.
nature of stabilizers in the particular solvent. Solvents with
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 0.01 N 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 the pH is 7.0 and record the titer. From
this titer, calculate and add the volume of 0.01N NaOH or
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM 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.
Designation: D2110 − 00 (Reapproved 2012) D2110 − 00 (Reapproved 2017)
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
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 safety, health, and healthenvironmental 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.
2. Summary of Test Method
2.1 The solvent sample is shaken with freshly boiled neutral distilled or deionized water and the pH of the water extract
determined by one of two procedures:
2.1.1 Procedure A, by comparing the color formed upon the addition of Universal Indicator with that of a calibrated pH
Indicator Color Chart, or
2.1.2 Procedure B, using a glass electrode pH meter.
3. 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.
4. Apparatus
2 2
4.1 Universal Indicator and pH Indicator Color Chart (Procedure A), or
4.2 pH Meter (Procedure B).
5. Water
5.1 Neutral Distilled or Deionized Water shall be prepared as follows: Boil 1 L of distilled or deionized water for 5 min in a
borosilicate glass or stainless steel container, then cover and cool to room temperature.
5.2 Procedure A—To a 50–mL aliquot of the cooled, boiled water, add 2 mL of Universal Indicator. Titrate the aliquot to a pH
of 7 (as indicated by comparing the color of the aliquot to the color chart per manufacturer’s instructions) with either 0.01 N HCl
if the pH is above 7 or 0.01 N NaOH if the pH is below 7, and record the titer. From this titer, calculate and add the volume of
This test method is under the jurisdiction of ASTM Committee D26 on Halogenated Organic Solvents and Fire Extinguishing Agents and is the direct responsibility of
Subcommittee D26.04 on Test Methods.
Current edition approved March 1, 2012Nov. 1, 2017. Published May 2012December 2017. Originally approved in 1962 as D2110-62 T. Last previo
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