ASTM D1133-13(2021)

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: D1133 − 13 (Reapproved 2021)
Standard Test Method for
Kauri-Butanol Value of Hydrocarbon Solvents
This standard is issued under the fixed designation D1133; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber 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 2. Referenced Documents
2.1 ASTM Standards:
1.1 Thistestmethodcoversthedeterminationoftherelative
D86Test Method for Distillation of Petroleum Products and
solvent power of hydrocarbon solvents used in paint and
Liquid Fuels at Atmospheric Pressure
lacquer formulations. This test method is suitable for use with
D304Specification forn-Butyl Alcohol (Butanol)
solvents having an initial boiling point over 40°C and a dry
D841Specification for Nitration Grade Toluene
point under 300°C when determined in accordance with the
D1078Test Method for Distillation Range of Volatile Or-
procedures in Note 1.
ganic Liquids
NOTE1—TestMethodD86isusedtodeterminetheinitialboilingpoint E29Practice for Using Significant Digits in Test Data to
and dry point for mineral spirits and similar petroleum solvents. Test
Determine Conformance with Specifications
MethodD1078isusedforpurecompoundsandnarrowboilingrangecuts.
3. Terminology
1.2 For purposes of determining conformance of an ob-
3.1 Definitions:
served or a calculated value using this test method to relevant
3.1.1 kauri-butanol value, n—of a solvent, the volume in
specifications,testresult(s)shallberoundedoff“tothenearest
millilitres at 25°C of the solvent, corrected to a defined
unit” in the last right-hand digit used in expressing the
standard, required to produce a defined degree of turbidity
specificationlimit,inaccordancewiththerounding-offmethod
when added to 20 g of a standard solution of kauri resin in
of Practice E29.
normal butyl alcohol.
1.3 For specific hazard information and guidance, consult
3.1.1.1 Discussion—Thekauriresinsolutionisstandardized
the supplier’s Material Safety Data Sheet.
against toluene, which has an assigned value of 105, and a
mixture of 75% n-heptane and 25% toluene on a volume
1.4 The values stated in SI units are to be regarded as
basis, which has an assigned value of 40.
standard. No other units of measurement are included in this
standard.
4. Significance and Use
1.5 This standard does not purport to address all of the
4.1 The kauri-butanol value is used as a measure of solvent
safety concerns, if any, associated with its use. It is the
power of hydrocarbon solvents. High kauri-butanol values
responsibility of the user of this standard to establish appro-
indicate relatively strong solvency.
priate safety, health, and environmental practices and deter-
5. Apparatus
mine the applicability of regulatory limitations prior to use.
5.1 Water Bath, capable of being maintained at 25°C 6
1.6 This international standard was developed in accor-
5°C. Alternatively, a temperature controlled environment
dance with internationally recognized principles on standard-
maintained at 25°C 6 5°C may be used.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- 5.2 Volumetric Flask, 200-mL capacity.
mendations issued by the World Trade Organization Technical
5.3 Erlenmeyer Flask, 250-mL capacity.
Barriers to Trade (TBT) Committee.
5.4 Sample Dispensing Device, Buret, of at least 50-mL
capacity, or equivalent, that is capable of accurately determin-
ing the volume dispensed to the nearest 0.1 mL.
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.35 on Solvents, Plasticizers, and Chemical Intermediates. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved July 1, 2021. Published August 2021. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1950. Last previous edition approved in 2013 as D1133–13. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D1133-13R21. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D1133 − 13 (2021)
5.5 Print Specimen—A sheet of white paper having on it place the Erlenmeyer flask and its contents in a water bath or
black 10 or 12 point print, No. 31 Bruce old style type. temperature controlled environment maintained at 25°C 6
NOTE 2—Text in this published standard is satisfactory to use as print
5°C and allow to equilibrate for at least 30 min. If the flask
specimen.
was placed in a water bath, remove the flask from the water
bath.Titratethecontentsoftheflaskwiththestandardtoluene.
6. Reagents
Swirl the contents of the flask during titration, periodically
6.1 Purity of Reagents—Reagent grade chemicals shall be
stopping to observe the clarity of the print beneath the flask.
used in all tests unless otherwise specified. Unless otherwise
Gradually reduce the successive amounts of toluene added as
indicated, it is intended that all reagents shall conform to the
theendpointisapproached.Theendpointisreachedwhenthe
specifications of the Committee onAnalytical Reagents of the
sharp outlines of 10-point print placed directly beneath the
American Chemical Society, where such specifications are
Erlenmeyer flask and observed through the liquid are first
available. Other grades may be used, provided it is first
perceived to be obscured or blurred. The point where the print
ascertained that the reagent is of sufficiently high purity to
becomes illegible is past the end point. Check the temperature
permit its use without lessening the accuracy of the determi-
in the flask immediately after the end point has been reached,
nation.
and if over 30°C or under 20°C, repeat the titration.
6.2 Kauri-Butanol Solution —Place in a 3-L flask 400 g of
7.2 Thevolumeoftolueneused,inmillilitres,representsthe
clean, pale, bold kauri resin of Grade XXXX, XXX, or XX
actual titer for the particular kauri-butanol solution at hand.
ground to pea-size or smaller.Add, while agitating vigorously,
This value should lie reasonably close to 105 mL, but not over
2000gof n-butylalcohol,(conformingtoSpecificationD304).
110 nor under 100 mL. If these limits are exceeded, adjust the
Shakeonamechanicalshakeruntiltheresingoesintosolution,
concentration of the kauri-butanol solution to bring the total
warming to about 55°C, if necessary to aid solution. If a
volumeoftoluenewithinthem.Designatethefinalvalueusing
mechanical shaker is not available, fit the flask with a reflux
toluene as A.
condenser and heat on a steam bath until all of the kauri resin
7.3 Weigh o
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