ASTM D5983-97(2002)
(Specification)Standard Specification for Methyl Tertiary-Butyl Ether (MTBE) for Downstream Blending for Use in Automotive Spark-Ignition Engine Fuel
Standard Specification for Methyl <I>Tertiary</I>-Butyl Ether (MTBE) for Downstream Blending for Use in Automotive Spark-Ignition Engine Fuel
SCOPE
1.1 This specification covers requirements for fuel grade methyl tertiary-butyl ether utilized in commerce, terminal blending, or downstream blending with fuels for spark-ignition engines. Other MTBE grades may be available for blending that are not covered by this specification.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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An American National Standard
Designation: D 5983 – 97 (Repproved 2002)
Standard Specification for
Methyl Tertiary-Butyl Ether (MTBE) for Downstream
Blending for Use in Automotive Spark-Ignition Engine Fuel
This standard is issued under the fixed designation D 5983; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope E 203 TestMethodforWaterUsingVolumetricKarlFischer
Titration
1.1 This specification covers requirements for fuel grade
E 300 Practice for Sampling Industrial Chemicals
methyl tertiary-butyl ether utilized in commerce, terminal
E 1064 Test Method for Water in Organic Liquids by
blending, or downstream blending with fuels for spark-ignition
Coulometric Karl Fischer Titration
engines. Other MTBE grades may be available for blending
that are not covered by this specification.
3. Terminology
1.2 The values stated in SI units are to be regarded as the
3.1 Definitions:
standard. The values given in parentheses are for information
3.1.1 methanol, n—the chemical compound CH OH.
only.
3.1.2 methyl tertiary-butyl ether (MTBE), n—the chemical
2. Referenced Documents compound (CH ) COCH [C H O].
3 3 3 5 12
3.1.3 oxygenate, n—an oxygen-containing ashless, organic
2.1 ASTM Standards:
compound, such as an alcohol or ether, which may be used as
D 130 Test Method for Detection of Copper Corrosion from
a fuel or fuel supplement.
Petroleum Products by the Copper Strip Tarnish Test
D 156 Test Method for Saybolt Color of Petroleum Prod-
4. Performance Requirements
ucts (Saybolt Chromometer Method)
4.1 Methyl tertiary-butyl ether utilized in commerce, termi-
D 381 Test Method for Gum Content in Fuels by Jet
2 nal blending, or downstream blending with fuels for ground
Evaporation
vehicles equipped with spark-ignition engines shall conform to
D 1298 Test Method for Density, Relative Density (Specific
the requirements of Table 1.
Gravity), or API Gravity of Crude Petroleum and Liquid
Petroleum Products by Hydrometer Method
NOTE 1—Individual applications may require a more restrictive sulfur
D 4045 Test Method for Sulfur in Petroleum Products by limit. These requirements are to be negotiated between buyer and seller.
Hydrogenolysis and Rateometric Colorimetry
5. Workmanship
D 4052 Test Method for Density and Relative Density of
5.1 The MTBE shall be visually free of undissolved water,
Liquids by Digital Density Meter
sediment, and suspended matter. It shall be clear and bright at
D 4057 Practice for Manual Sampling of Petroleum and
the ambient temperature or 21°C (70°F), whichever is higher.
Petroleum Products
5.2 The specification defines only a basic purity for this
D 4176 Test Method for Free Water and Particulate Con-
product. The product shall be free of any adulterant or
tamination in Distillate Fuels (Visual Inspection Proce-
contaminant that may render the material unacceptable for its
dures)
commonly used applications.
D 4953 Test Method for Vapor Pressure of Gasoline and
Gasoline-Oxygenate Blends (Dry Method)
6. Sampling
D 5441 TestMethodforAnalysisofMethyltert-ButylEther
6.1 Samples may be obtained by an appropriate procedure
(MTBE) by Gas Chromatography
of Practice D 4057 or Practice E 300. Do not use soldered
metal containers although they are specified in 11.3 of Practice
This specification is under the jurisdiction of ASTM Committee D02 on
E 300, because the soldering flux in the containers may
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
contaminate the sample. Some soldered cans, such as those
D02.A0 on Gasoline and Oxygenated Fuels.
conforming to the requirements of 7.1 of Practice D 4057 are
Current edition approved Dec. 10, 2002. Published March 2003. Originally
approved in 1996. Last previous edition approved in 1997 as D 5983 – 97.
Annual Book of ASTM Standards, Vol 05.01.
3 5
Annual Book of ASTM Standards, Vol 05.02. Annual Book of ASTM Standards, Vol 15.05.
4 6
Annual Book of ASTM Standards, Vol 05.04. Discontinued. See 2000 Annual Book of ASTM Standards, Vol 15.05.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D 5983 – 97 (Repproved 2002)
TABLE 1 Performance Requirements
7.2 Appearance—Test Method D 4176, Procedure 1.
Property Limits
7.3 Sulfur—Test Method D 4045 (see Note 2).
Appearance Clear and bright
7.4 Solvent-Washed Gum Content—Test Method D 381,
Color, Saybolt, min + 5
air-jet apparatus.
Sulfur, mg/kg, max 300
Solvent-washed gum content, mg/100 mL, max 5.0
7.5 MTBE, mass %—Test Method D 5441.
Copper strip corrosion, max 1
MTBE, mass %, min 95.0 7.6 Methanol, mass %—Test Method D 5441.
Methanol, mass% , max 0.5
7.7 API Gravity at 15.6°C (60°F)—Practice D 1298.
Vapor pressure, kPa (psi), max 62 (9.0)
Water, mass %, max 0.10
7.8 Density at 15°C—Practice D 1298 or Test Method
API gravity at 15.6°C (60°F) or density at 15°C, Report
D 4052.
kg/l
7.9 Copper Strip Corrosion—Test Method D 130,3hat
50°C (122°F).
acceptable, but because they cannot readily be distinguished
7.10 Water Content—Test Methods E 203 or E 1064.
fromcanswhichdonotmeetthisspecification,theuseofmetal
7.11 Vapor Pressure—Test Method D 4953.
containers is to be avoided.
6.2 Sample Size—Aminimum of about 2 Lor 2 U.S. quarts 7.12 Color, Saybolt—Test Method D 156.
is recommended.
NOTE 2—Test Method D 4045 may require dilution of the sample with
6.3 Lot Size—A lot shall normally consist of the amount
a sulfur-free diluent.
contained in a tanker compartment or other bulk container in
which it is delivered. If this definition does not apply, the
8. Keywords
definition of a lot must be agreed upon between the supplier
8.1 automotive spark-ignition engine fuel; blending; corro-
and purchaser.
sion; impurities; methanol; methyl tertiary-butyl ether; oxy-
7. Test Methods
genate; water content
7.1 The scope of some of the test methods specified below
donotincludeMTBE.Theprecisionofthosetestmethodsmay
differ from the reported precisions when testing MTBE.
APPENDIX
(Nonmandatory Information)
X1. SIGNIFICANCE OFASTM SPECIFICATION FOR MTBE FOR DOWNSTREAM BLENDING FOR USE INAUTOMOTI
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