ASTM D4808-01

Standard Test Methods for Hydrogen Content of Light Distillates, Middle Distillates, Gas Oils, and Residua by Low-Resolution Nuclear Magnetic Resonance Spectroscopy

SCOPE
1.1 These test methods cover the determination of the hydrogen content of petroleum products ranging from atmospheric distillates to vacuum residua using a continuous wave, low-resolution nuclear magnetic resonance spectrometer. (Test Method D 3701 is the preferred method for determining the hydrogen content of aviation turbine fuels using nuclear magnetic resonance spectroscopy.)
1.2 Three test methods are included here that account for the special characteristics of different petroleum products and apply to the following distillation ranges:Test MethodPetroleum ProductsBoiling Range, °C (°F) (approximate)A Light Distillates15-260 (60-500)B Middle Distillates,200-370 (400-700) Gas Oils370-510 (700-950)C Residua510+ (950+ )
1.3 The preferred units are mass %.
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 hazard statements, see Section 6.1.

General Information

• Status: Historical
• Publication Date: 09-Nov-2001
• ICS: 75.160.20 - Liquid fuels
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.03 - Elemental Analysis

Relations

• Replaces: ASTM D4808-98 - Standard Test Methods for Hydrogen Content of Light Distillates, Middle Distillates, Gas Oils, and Residua by Low-Resolution Nuclear Magnetic Resonance Spectroscopy
• Effective Date: 10-Nov-2001
• Replaced By: ASTM D4808-01(2006) - Standard Test Methods for Hydrogen Content of Light Distillates, Middle Distillates, Gas Oils, and Residua by Low-Resolution Nuclear Magnetic Resonance Spectroscopy
• Effective Date: 01-May-2006
• Referred By: ASTM D3701-17 - Standard Test Method for Hydrogen Content of Aviation Turbine Fuels by Low Resolution Nuclear Magnetic Resonance Spectrometry
• Effective Date: 10-Nov-2001
• Referred By: ASTM D7171-20 - Standard Test Method for Hydrogen Content of Middle Distillate Petroleum Products by Low-Resolution Pulsed Nuclear Magnetic Resonance Spectroscopy
• Effective Date: 10-Nov-2001
• Referred By: ASTM D7455-19 - Standard Practice for Sample Preparation of Petroleum and Lubricant Products for Elemental Analysis
• Effective Date: 10-Nov-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
Designation:D4808–01
Standard Test Methods for
Hydrogen Content of Light Distillates, Middle Distillates,
Gas Oils, and Residua by Low-Resolution Nuclear Magnetic
1
Resonance Spectroscopy
This standard is issued under the fixed designation D4808; 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 (e) 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* D5291 Test Methods for Instrumental Determination of
Carbon, Hydrogen, and Nitrogen in Petroleum Products
1.1 These test methods cover the determination of the
2
and Lubricants
hydrogen content of petroleum products ranging from atmo-
spheric distillates to vacuum residua using a continuous wave,
3. Summary of Test Methods
low-resolution nuclear magnetic resonance spectrometer. (Test
3.1 A test specimen is compared in a continuous wave,
Method D3701 is the preferred method for determining the
low-resolution nuclear magnetic resonance (NMR) spectrom-
hydrogen content of aviation turbine fuels using nuclear
eter with a reference standard sample. The spectrometer
magnetic resonance spectroscopy.)
records in a nondestructive fashion the absolute concentration
1.2 Threetestmethodsareincludedherethataccountforthe
of hydrogen atoms in the reference standard and test sample.
special characteristics of different petroleum products and
The absolute hydrogen concentrations reported by the integra-
apply to the following distillation ranges:
torontheNMRinstrumentforthestandardandtestspecimens
Boiling Range, °C (°F)
are used as a means of comparing the theoretical hydrogen
Test Method Petroleum Products (approximate)
A Light Distillates 15–260 (60–500)
contentofthestandardwiththatofthesample,theresultbeing
B Middle Distillates, 200–370 (400–700)
expressed as the hydrogen content (on a mass % basis) of the
Gas Oils 370–510 (700–950)
sample.
C Residua 510+ (950+ )
3.2 To ensure an accurate measure of the absolute hydrogen
1.3 The preferred units are mass %.
content of the reference standard and sample, it is necessary to
1.4 This standard does not purport to address all of the
ensurethatthemeasuredhydrogenintegratorcountsarealways
safety concerns, if any, associated with its use. It is the
directly proportional to the absolute hydrogen content of the
responsibility of the user of this standard to establish appro-
standard and sample.
priate safety and health practices and determine the applica-
3.3 Undercounting of the reference standard with respect to
bility of regulatory limitations prior to use. For specific hazard
the sample is avoided in Test Methods B and C by dilution of
statements, see Section 6.1.
the standard with a relaxation reagent solution. Undercounting
ofhighlyviscousorsolidtestsamplesisavoidedbydissolving
2. Referenced Documents
the sample in a non-hydrogen containing solvent, which
2.1 ASTM Standards:
ensures that all of the weighed sample is in a fluid and
D3701 Test Method for Hydrogen Content of Aviation
homogeneoussolutionatthetimeofmeasurement.Anelevated
TurbineFuelsbyLowResolutionNuclearMagneticReso-
sample temperature at the time of measurement also ensures a
2
nance Spectrometry
homogeneous liquid-phase sample.
D4057 Practice for Manual Sampling of Petroleum and
2
Petroleum Products
4. Significance and Use
4.1 The hydrogen content represents a fundamental quality
of a petroleum product that has been correlated with many of
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the performance characteristics of that product.
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
4.2 This test method provides a simple and more precise
D02.03 on Elemental Analysis.
alternative to existing test methods, specifically combustion
Current edition approved Nov. 10, 2001. Published December 2001. Originally
techniques (Test Method D5291) for determining the hydro-
published as D4808–88. Last previous edition D4808–98.
2
Annual Book of ASTM Standards, Vol 05.02. gen content on a range of petroleum products.
*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.
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D4808–01
5. Apparatus
NOTE 1—This test method has been written around the Newport
Analyzer Mark IIIF or it’s replacement version, the Newport 4000
(OxfordAnalyticalInstruments,Ltd.,Oxford,England),andthedetailsof
the test method are to be read in conjunction with the manufacturer’s
handbook. These instruments
...