ASTM D5006-10
(Test Method)Standard Test Method for Measurement of Fuel System Icing Inhibitors (Ether Type) in Aviation Fuels
Standard Test Method for Measurement of Fuel System Icing Inhibitors (Ether Type) in Aviation Fuels
SIGNIFICANCE AND USE
DiEGME is miscible with water and can be readily extracted from the fuel by contact with water during shipping and in storage. Methods are therefore needed to check the additive content in the fuel to ensure proper additive concentration in the aircraft.
This test method is applicable to analyses performed in the field or in a laboratory.
SCOPE
1.1 This test method covers a technique for measuring the concentration of Diethylene Glycol Monomethyl Ether (DiEGME) in aviation fuels. A measured volume of fuel, extracted with a fixed ratio of water, is tested with a suitable refractometer to determine the concentration of fuel system icing inhibitor (FSII) in fuel. Precision estimates have been determined for the DiEGME additive using specific extraction ratios with a wide variety of fuel types. The extraction ratios are high enough that portable handheld refractometers can be used, but not so high as to sacrifice accuracy or linearity, or both, in the 0.01 to 0.25 vol % range of interest.
1.2 DiEGME is fully described in Specification D4171 and in other specifications.
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.
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An American National Standard
Designation:D5006–10
Standard Test Method for
Measurement of Fuel System Icing Inhibitors (Ether Type) in
1
Aviation Fuels
This standard is issued under the fixed designation D5006; 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 Department of Defense.
1. Scope 3.1.1 analog refractometer, n—a traditional-style refracto-
meter which visually projects a shadowline onto a scale etched
1.1 This test method covers a technique for measuring the
into a glass reticle.
concentration of Diethylene Glycol Monomethyl Ether (Di-
3.1.1.1 Discussion—The scale, which is magnified by an
EGME)inaviationfuels.Ameasuredvolumeoffuel,extracted
eyepiece, displays either a direct reading of DiEGME concen-
with a fixed ratio of water, is tested with a suitable refracto-
tration, as is the case with the analog HB refractometer, or may
meter to determine the concentration of fuel system icing
display Brix units which must be converted into DiEGME
inhibitor (FSII) in fuel. Precision estimates have been deter-
concentration.
minedfortheDiEGMEadditiveusingspecificextractionratios
3.1.2 Brix refractometer, n—a refractometer which displays
with a wide variety of fuel types.The extraction ratios are high
readings on the Brix scale.
enough that portable handheld refractometers can be used, but
3.1.3 Brix scale, n—an expression of the mathematical
not so high as to sacrifice accuracy or linearity, or both, in the
relationship between refractive index and the concentration by
0.01 to 0.25 vol % range of interest.
weight of pure sucrose in water.
1.2 DiEGME is fully described in Specification D4171 and
3.1.4 digital refractometer, n—Arefractometer which relies
in other specifications.
on a solid-state image sensor to measure the refractive index of
1.3 The values stated in SI units are to be regarded as
a solution, convert the refractive index reading into a particular
standard. No other units of measurement are included in this
unit of measure (percent DiEGME), and outputs the results on
standard.
a digital display.
1.4 This standard does not purport to address all of the
3.2 Acronyms:
safety concerns, if any, associated with its use. It is the
3.2.1 DiEGME—Diethylene Glycol Monomethyl Ether
responsibility of the user of this standard to establish appro-
3.2.2 FSII—fuel system icing inhibitor
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
4. Summary of Test Method
2. Referenced Documents 4.1 In order to determine the concentration of DiEGME in
2
aviation fuel, a measured volume of fuel is extracted with a
2.1 ASTM Standards:
fixed ratio of water. The extraction procedure includes suffi-
D4171 Specification for Fuel System Icing Inhibitors
cient agitation and contacting time to ensure that equilibrium
E1 Specification for ASTM Liquid-in-Glass Thermometers
distributions are attained. If using an Analog Refractometer,
E29 Practice for Using Significant Digits in Test Data to
place several drops of water extract on the measuring surface,
Determine Conformance with Specifications
point it towards a light source, and take a reading on the
3. Terminology
internal scale. The analog HB refractometer will display the
actually percent volume of DiEGME on its scale. Users of a
3.1 Definitions of Terms Specific to This Standard:
Brix refractometer will follow a similar procedure, but will
have to convert the Brix reading into DiEGME percent
1
This test method is under the jurisdiction of ASTM Committee D02 on
volume. If the Brix refractometer is not automatically tempera-
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
ture compensated, then a temperature correction must first be
D02.J0.04 on Additives and Electrical Properties.
applied to the Brix reading before converting it to percent
Current edition approved Aug. 1, 2010. Published August 2010. Originally
approved in 1989. Last previous edition approved in 2003 as D5006–03. DOI:
DiEGME. If using a Digital Refractometer, place several drops
10.1520/D5006-10.
ofwaterextractinthesamplewell,pressabuttontoinitiatethe
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
reading, and the percent volume of DiEGME will be displayed
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
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United Stat
...
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.
An American National Standard
Designation:D5006–03 Designation:D5006–10
Standard Test Method for
Measurement of Fuel System Icing Inhibitors (Ether Type) in
1
Aviation Fuels
This standard is issued under the fixed designation D5006; 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 Department of Defense.
1. Scope
1.1 This test method covers a technique for measuring the concentration of Diethylene Glycol Monomethyl Ether (DiEGME)
in aviation fuels. The HB and Brix scale refractometers are specified A measured volume of fuel, extracted with a fixed ratio of
water, is tested with a suitable refractometer to determine the concentration of this fuel system icing inhibitor (FSII) by measuring
the refractive index of a water extract.in fuel. Precision estimates have been determined for the DiEGME additive using specific
extraction ratios with a wide variety of fuel types. The extraction ratios are high enough that portable handheld refractometers can
be used, but not so high as to sacrifice accuracy or linearity, or both, in the 0.01 to 0.25 vol % range of interest.
1.2 DiEGME is fully described in Specification D4171 and in other specifications.
1.3The values stated in SI units are to be regarded as the standard.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D4171 Specification for Fuel System Icing Inhibitors
E1 Specification for ASTM Liquid-in-Glass Thermometers
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 Brix scale—a refractometer with a refractive index scale calibrated to weight percent cane sugar (sucrose). analog
refractometer, n—a traditional-style refractometer which visually projects a shadowline onto a scale etched into a glass reticle.
3.1.1.1 Discussion—The scale, which is magnified by an eyepiece, displays either a direct reading of DiEGME concentration,
as is the case with the analog HB refractometer, or may display Brix units which must be converted into DiEGME concentration.
3.1.2 HB—a refractometer that can be used in a temperature range from 18 to 35°C without incorporating a temperature
correction factor. Brix refractometer, n—a refractometer which displays readings on the Brix scale.
3.1.3 Brix scale, n—an expression of the mathematical relationship between refractive index and the concentration by weight
of pure sucrose in water.
3.1.4 digital refractometer, n—A refractometer which relies on a solid-state image sensor to measure the refractive index of a
solution, convert the refractive index reading into a particular unit of measure (percent DiEGME), and outputs the results on a
digital display.
3.2 Acronyms:
3.2.1 DiEGME—Diethylene Glycol Monomethyl Ether
3.2.2 FSII—fuel system icing inhibitor
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.J0.04
on Aviation Fuels. Additives and Electrical Properties.
Current edition approved Dec.Aug. 1, 2003.2010. Published January 2004.August 2010. Originally approved in 1989. Last previous edition approved in 20022003 as
D5006–02.D5006–03. DOI: 10.1520/D5006-103.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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D5006–10
4. Summary of Test Method
4.1In order to determine the concentration of DiEGME in aviation fuel, a measured volume of fuel is extracted with a fixed ratio
of water. The extraction procedure includes sufficient a
...
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