ASTM D2068-12a
(Test Method)Standard Test Method for Determining Filter Blocking Tendency
Standard Test Method for Determining Filter Blocking Tendency
SIGNIFICANCE AND USE
5.1 This test method is intended for use in evaluating the cleanliness of middle distillate fuels, and biodiesel and biodiesel blends for specifications and quality control purposes.
5.2 The filter media specified in the three procedures are all suitable for the materials in the Scope. Specifications calling up this test method should state the procedure required.
5.3 A change in filtration performance after storage or pretreatment can be indicative of changes of fuel condition.
5.4 The filterability of fuels varies depending on filter porosity and structure and therefore results from this test method might not correlate with full scale filtration.
5.5 Causes of poor filterability in industrial/refinery filters include fuel degradation products, contaminants (including water) picked up during storage or transfer, effects due to temperature or composition for bio fuels, incompatibility of commingled fuels, or interaction of the fuel with the filter media. Any of these could correlate with orifice or filter system plugging, or both.
5.6 The results of the FBT test can range from 1 with a fuel with very good filterability, to over 100 for a fuel with poor filterability. The selection of a single FBT number to define a pass or fail criteria is not possible as this will be dependent on the fuel type and applications.
SCOPE
1.1 This test method covers three procedures for the determination of the filter blocking tendency (FBT) and filterability of middle distillate fuel oils and liquid fuels such as biodiesel and biodiesel blends. The 3 procedures and associated filter types, are applicable to fuels within the viscosity range of 1.3 to 6.0 mm2/s at 40°C.Note 1—ASTM specification fuels falling within the scope of this test method are: Specifications D396 Grades No 1 and 2; Specification D975 Grades 1-D, low sulfur 1-D and 2-D; Specification D2880 Grades 1-GT and 2-GT; Specification D6751.
1.2 This test method is not applicable to fuels that contain free (undissolved) water (see 7.3).
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.
General Information
Relations
Buy Standard
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
Designation: D2068 − 12a
StandardTest Method for
1
Determining Filter Blocking Tendency
This standard is issued under the fixed designation D2068; 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.
INTRODUCTION
This test method describes three procedures using different filter media. The result of any test is
dependent on the filter mandated in the procedure. If a specification requires a specific D2068
procedure, do not substitute a different procedure or filter without agreement from the specifier.
1. Scope* D4057 Practice for Manual Sampling of Petroleum and
Petroleum Products
1.1 This test method covers three procedures for the deter-
D4176 Test Method for FreeWater and Particulate Contami-
mination of the filter blocking tendency (FBT) and filterability
nation in Distillate Fuels (Visual Inspection Procedures)
of middle distillate fuel oils and liquid fuels such as biodiesel
D4177 Practice for Automatic Sampling of Petroleum and
and biodiesel blends. The 3 procedures and associated filter
Petroleum Products
types, are applicable to fuels within the viscosity range of 1.3
2 D4860 Test Method for FreeWater and Particulate Contami-
to 6.0 mm /s at 40°C.
nation in Middle Distillate Fuels (Clear and Bright Nu-
NOTE 1—ASTM specification fuels falling within the scope of this test
merical Rating)
method are: Specifications D396 Grades No 1 and 2; Specification D975
D6300 Practice for Determination of Precision and Bias
Grades 1-D, low sulfur 1-D and 2-D; Specification D2880 Grades 1-GT
Data for Use in Test Methods for Petroleum Products and
and 2-GT; Specification D6751.
Lubricants
1.2 This test method is not applicable to fuels that contain
D6426 Test Method for Determining Filterability of Middle
free (undissolved) water (see 7.3).
Distillate Fuel Oils
1.3 The values stated in SI units are to be regarded as
D6708 Practice for StatisticalAssessment and Improvement
standard. No other units of measurement are included in this
of Expected Agreement Between Two Test Methods that
standard.
Purport to Measure the Same Property of a Material
D6751 Specification for Biodiesel Fuel Blend Stock (B100)
1.4 This standard does not purport to address all of the
for Middle Distillate Fuels
safety concerns, if any, associated with its use. It is the
3
responsibility of the user of this standard to establish appro-
2.2 ISO Standard:
priate safety and health practices and determine the applica-
ISO 5636-5 Paper and Board—Determination of Air Per-
bility of regulatory limitations prior to use.
meance and Air Resistance (Medium Range) Part 5
Gurley Method
2. Referenced Documents
2.3 ASTM Adjuncts:
2
2.1 ASTM Standards:
D2PP, Determination of Precision and Bias Data for Use in
4
D396 Specification for Fuel Oils
Test Methods for Petroleum Products
D975 Specification for Diesel Fuel Oils
CompTM, Standard Practice for Statistical Assessment and
D2880 Specification for Gas Turbine Fuel Oils
Improvement of the Expected Agreement between Two
Test Methods that Purport to Measure the Same Property
4
of a Material
1
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
3. Terminology
D02.14 on Stability and Cleanliness of Liquid Fuels.
Current edition approved Dec. 1, 2012. Published March 2013. Originally
3.1 Definitions of Terms Specific to This Standard:
approved in 1997. Last previous edition approved in 2012 as D2068–12. DOI:
10.1520/D2068-12A.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
Standards volume information, refer to the standard’s Document Summary page on 4th Floor, New York, NY 10036, http://www.ansi.org.
4
the ASTM website. This adjunct has been withdrawn and is no longer available.
*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 ----------------------
D2068 − 12a
3.1.1 filter blocking tendency (FBT), n—of certain fuels,a pass or fail criteria is not possible as this will be dependent on
calculated dimensionless value that defines the tendency of the fuel type and applications.
particulates in a fuel to plug or block a filter.
6. Apparatus
3.1.1.1 Discussion—The value is calculated using the pres-
sure across the filter or the volume of fuel filtered at the end of
6.1 General—The apparatus, as des
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM 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: D2068 − 12 D2068 − 12a
387/11
Standard Test Method for
1,21
Determining Filter Blocking Tendency
This standard is issued under the fixed designation D2068; 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.
INTRODUCTION
This test method describes three procedures using different filter media. The result of any test is
dependent on the filter mandated in the procedure. If a specification requires a specific D2068
procedure, do not substitute a different procedure or filter without agreement from the specifier.
1. Scope*
1.1 This test method covers three procedures for the determination of the filter blocking tendency (FBT) and filterability of
middle distillate fuel oils and liquid fuels such as biodiesel and biodiesel blends. The 3 procedures and associated filter types, are
2
applicable to fuels within the viscosity range of 1.3 to 6.0 mm /s at 40°C.
NOTE 1—ASTM specification fuels falling within the scope of this test method are: Specifications D396 Grades No 1 and 2; Specification D975 Grades
1-D, low sulfur 1-D and 2-D; Specification D2880 Grades 1-GT and 2-GT; Specification D6751.
1.2 This test method is not applicable to fuels that contain free (undissolved) water (see 7.3).
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:
D396 Specification for Fuel Oils
D975 Specification for Diesel Fuel Oils
D2880 Specification for Gas Turbine Fuel Oils
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4176 Test Method for Free Water and Particulate Contamination in Distillate Fuels (Visual Inspection Procedures)
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
D4860 Test Method for Free Water and Particulate Contamination in Middle Distillate Fuels (Clear and Bright Numerical
Rating)
D6300 Practice for Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products and Lubricants
D6426 Test Method for Determining Filterability of Middle Distillate Fuel Oils
D6708 Practice for Statistical Assessment and Improvement of Expected Agreement Between Two Test Methods that Purport
to Measure the Same Property of a Material
D6751 Specification for Biodiesel Fuel Blend Stock (B100) for Middle Distillate Fuels
3
2.2 ISO Standard:
ISO 5636-5 Paper and Board—Determination of Air Permeance and Air Resistance (Medium Range) Part 5 Gurley Method
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.14 on
Stability and Cleanliness of Liquid Fuels.
Current edition approved June 1, 2012Dec. 1, 2012. Published October 2012March 2013. Originally approved in 1997. Last previous edition approved in 20102012 as
D2068–10.–12. DOI: 10.1520/D2068-12.10.1520/D2068-12A.
2
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 the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*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 ----------------------
D2068 − 12a
2.3 ASTM Adjuncts:
4
D2PP, Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products
CompTM, Standard Practice for Statistical Assessment and Improvement of the Expected Agreement between Two Test
4
Methods that Purport to Measure the Same Property of a Material
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 filter blocking tendency (FBT), n—of certain fuels, a calculated dimensionless value that defines the tendency of
particulates in a fuel to plug or block
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.