ASTM D2269-10
(Test Method)Standard Test Method for Evaluation of White Mineral Oils by Ultraviolet Absorption
Standard Test Method for Evaluation of White Mineral Oils by Ultraviolet Absorption
SIGNIFICANCE AND USE
The ultraviolet absorption of white mineral oils is used to determine their suitability for use in food, drug, and cosmetic applications.
The U.S. Pharmacopeia and the National Formulary specifications for mineral oil require the measurement of ultraviolet absorption.
SCOPE
1.1 This test method describes a procedure for the examination and evaluation of NF and USP grade white mineral oils.
1.2 This test method is not applicable to oils containing additives soluble in dimethyl sulfoxide (DMSO) that exhibit fluorescence or fluorescence quenching properties.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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. For specific warning statements, see 7.1.1-7.1.3.
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Designation: D2269 − 10
StandardTest Method for
1
Evaluation of White Mineral Oils by Ultraviolet Absorption
This standard is issued under the fixed designation D2269; 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.
1. Scope* 3.1.1 For definitions of terms and symbols relating to
absorption spectroscopy see Terminology E131. Terms of
1.1 This test method describes a procedure for the exami-
particular significance are the following:
nationandevaluationofNFandUSPgradewhitemineraloils.
3.1.2 radiant energy, n—energy transmitted as electromag-
1.2 This test method is not applicable to oils containing
netic waves.
additives soluble in dimethyl sulfoxide (DMSO) that exhibit
3.1.3 radiant power, P, n—the rate at which energy is
fluorescence or fluorescence quenching properties.
transported in a beam of radiant energy.
1.3 The values stated in SI units are to be regarded as
3.2 Definitions of Terms Specific to This Standard:
standard. No other units of measurement are included in this
3.2.1 absorbance, A, n—the logarithm to the base 10 of the
standard.
reciprocal of the transmittance, T. In symbols:
1.4 This standard does not purport to address all of the
A 5log 1/T 52log T
~ !
10 10
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
where T is the transmittance as defined in 3.2.5.
priate safety and health practices and determine the applica-
3.2.2 absorptivity, a, n—the absorbance divided by the
bility of regulatory limitations prior to use. For specific
product of sample pathlength and concentration. In symbols:
warning statements, see 7.1.1-7.1.3.
a 5A/bc
2. Referenced Documents
where A is the absorbance as defined in 3.2.1,bisthe
2
2.1 ASTM Standards:
sample pathlength as defined in 3.2.4, and c is the concentra-
D1840Test Method for Naphthalene Hydrocarbons inAvia-
tion as defined in 3.2.3.
tion Turbine Fuels by Ultraviolet Spectrophotometry
3.2.3 concentration, c, n—the quantity of sample expressed
E131Terminology Relating to Molecular Spectroscopy
in grams per litre.
E275PracticeforDescribingandMeasuringPerformanceof
3.2.4 sample pathlength, b, n—the distance in centimetres,
Ultraviolet and Visible Spectrophotometers
measuredinthedirectionofpropagationofthebeamofradiant
2.2 Other Standard:
energy, between the surfaces of the specimen on which the
U.S. Pharmacopeia USP XIII/National Formulary (NF
3 radiantenergyisincidentandthesurfaceofthespecimenfrom
XVIII)
which it is emergent.
3. Terminology
3.2.5 transmittance, T, n—the ratio of the radiant power
transmitted by the mineral oil extract in its cell to the radiant
3.1 Definitions:
power transmitted by the solvent control in its cell. Expressed
by:
1
This test method is under the jurisdiction of ASTM Committee D02 on
PetroleumProductsandLubricantsandisthedirectresponsibilityofSubcommittee
T 5P /P
e c
D02.04.0F on Absorption Spectroscopic Methods.
Current edition approved May 1, 2010. Published June 2010. Originally
where P is the radiant power transmitted by the mineral
e
approved in 1964. Last previous edition approved in 2005 as D2269–99(2005).
oil extract and P is the radiant power transmitted by the
c
DOI: 10.1520/D2269-10.
2 solvent control.
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 4. Summary of Test Method
the ASTM website.
3 4.1 Asampleofoilisextractedwithdimethylsulfoxideand
Available from The United States Pharmacopeia (USP), 12601 Twinbrook
Parkway, Rockville, MD 20852. the ultraviolet absorbance of the extract is determined in the
*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
1
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D2269 − 10
NOTE 3—This solvent can be purified by percolation through a 1.2-m
range from 260 to 350 nm. The absorbance is compared with
column of type CAL 1.68 by 0.420 mm (12 by 40 mesh) activated
that of a naphthalene standard.
4
charcoal. Thecolumnis25mmindiameter,drawnto6.4mmindiameter
atthebottomandhasareservoiratthetopforcontainingtheliquid.Glass
5. Significance and Use
wool is placed in the bottom of the column, and about 13 mm of 0.707 to
5.1 The ultraviolet absorption of white mineral oils is used 0.074 (25 to 200 mesh) or 0.0149 to 0.074 (100 to 200 mesh) silica gel is
placed on top of it. The column is filled with activated cha
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:D2269–99 (Reapproved 2005) Designation:D2269–10
Standard Test Method for
1
Evaluation of White Mineral Oils by Ultraviolet Absorption
This standard is issued under the fixed designation D2269; 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 describes a procedure for the examination and evaluation of NF and USP grade white mineral oils.
1.2 This test method is not applicable to oils containing additives soluble in dimethyl sulfoxide (DMSO) that exhibit
fluorescence or fluorescence quenching properties.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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. For specific warning statements, see 7.1.1-7.1.3.
2. Referenced Documents
2
2.1 ASTM Standards:
D1840 Test Method for Naphthalene Hydrocarbons in Aviation Turbine Fuels by Ultraviolet Spectrophotometry
E131 Terminology Relating to Molecular Spectroscopy
E275 Practice for Describing and Measuring Performance of Ultraviolet and Visible Spectrophotometers
2.2 Other Standard:
3
U.S. Pharmacopeia USP XIII/National Formulary (NF XVIII)
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms and symbols relating to absorption spectroscopy see Terminology E131. Terms of particular
significance are the following:
3.1.2 radiant energy, n—energy transmitted as electromagnetic waves.
3.1.3 radiant power, P, n—the rate at which energy is transported in a beam of radiant energy.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 absorbance, A, n—the logarithm to the base 10 of the reciprocal of the transmittance, T. In symbols:
A 5 log ~1/T!52log T
10 10
where T is the transmittance as defined in 3.2.5.
3.2.2 absorptivity, a, n—the absorbance divided by the product of sample pathlength and concentration. In symbols:
a 5 A/bc
whereAistheabsorbanceasdefinedin3.2.1,bisthesamplepathlengthasdefinedin3.2.4,andcistheconcentrationasdefined
in 3.2.3.
3.2.3 concentration, c, n—the quantity of sample expressed in grams per litre.
3.2.4 sample pathlength, b, n—the distance in centimetres, measured in the direction of propagation of the beam of radiant
energy, between the surfaces of the specimen on which the radiant energy is incident and the surface of the specimen from which
it is emergent.
3.2.5 transmittance, T, n—the ratio of the radiant power transmitted by the mineral oil extract in its cell to the radiant power
transmitted by the solvent control in its cell. Expressed by:
T 5 P /P
e c
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.04.0F
on Hydrocarbon Analysis. Absorption Spectroscopic Methods.
Current edition approved JuneMay 1, 2005.2010. Published August 2005.June 2010. Originally approved in 1964. Last previous edition approved in 19992005 as
´1
D2269–99 . D2269–99(2005). DOI: 10.1520/D2269-99R05.10.1520/D2269-10.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
3
Available from The United States Pharmacopeia (USP), 12601 Twinbrook Parkway, Rockville, MD 20852.
*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.
1
---------------------- Page: 1 ----------------------
D2269–10
whereP istheradiantpowertransmittedbythemineraloilextractandP istheradiantpowertransmittedbythesolventcontrol.
e c
4. Summary of Test Method
4.1 Asample of oil is extracted with dimethyl sulfoxide and the ultraviolet absorbance of the extract is determined in the range
from 260 to 350 nm. The absorbance is compared with that of a naphthalene standard.
5. Significance and Use
5.1 The ultraviolet absorption of white mineral oils is used to determine their suitability for use in food, drug, and
...
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