ASTM D4042-93(2009)
(Test Method)Test Method for Sampling and Testing for Ash and Total Iron in Steel Mill Dispersions of Rolling Oils
Test Method for Sampling and Testing for Ash and Total Iron in Steel Mill Dispersions of Rolling Oils
SIGNIFICANCE AND USE
The life cycle and cleanliness of a recirculating steel mill rolling oil dispersion is affected by the amount of iron present. This iron consists mainly of iron from acid pickling residues and iron from attrition of the steel sheet or rolls during cold rolling. In sampling rolling oils for total iron it is difficult to prevent adherence of iron containing sludge to the sample container. Thus, the accuracy of a total iron determination from an aliquot sample is suspect. This practice provides a means for ensuring that all iron contained in a sample is included in the analysis.
Although less significant, the ash content is still an essential part of the procedure for obtaining a total iron analysis. Generally, the ash will be mostly iron, and in many cases, could be used as a substitute for total iron in determining when to change the dispersion.
FIG. 1 Possible Holding Fixture and Assembly System
SCOPE
1.1 This test method describes a procedure for sampling and testing dispersions of rolling oils in water from operating steel rolling mills for determination of ash and total iron content. Its purpose is to provide a test method such that a representative sample may be taken and phenomenon such as iron separation, fat-emulsion separation, and so forth, do not contribute to analytical error in determination of ash and total iron.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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 Sections 6 and 7.
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Designation: D4042 − 93(Reapproved 2009)
Standard Test Method for
Sampling and Testing for Ash and Total Iron in Steel Mill
1
Dispersions of Rolling Oils
This standard is issued under the fixed designation D4042; 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 3. Summary of Test Method
3.1 Polyethylene disposable sample bags in a suitable hold-
1.1 This test method describes a procedure for sampling and
ing device are used to collect representative samples of
testing dispersions of rolling oils in water from operating steel
nonhomogeneous dispersions of rolling mill oils in water from
rolling mills for determination of ash and total iron content. Its
an operating mill coolant system.
purpose is to provide a test method such that a representative
sample may be taken and phenomenon such as iron separation,
3.2 Thecollectedsampleanddisposablebagareanalyzedas
fat-emulsion separation, and so forth, do not contribute to
one for ash and total iron.
analytical error in determination of ash and total iron.
3.2.1 Ash content is determined gravimetrically by evapo-
rating all water from the sample bag before heating the residue
1.2 The values stated in SI units are to be regarded as the
and bag in a muffle furnace to a constant weight (Test Method
standard. The values given in parentheses are for information
D482).
only.
3.2.2 Total iron content is determined by digesting the iron
1.3 This standard does not purport to address all of the
in the ashed sample and bag in an acidified solution. The iron
safety concerns, if any, associated with its use. It is the
in the solution is reduced with stannous chloride and titrated
responsibility of the user of this standard to establish appro-
with standardized potassium dichromate.
priate safety and health practices and determine the applica-
3.2.3 The ash and total iron contributed by a sample bag
bility of regulatory limitations prior to use. For specific
alone are determined separately and are subtracted from the
warning statements, see Sections 6 and 7.
values of bag and sample to obtain the values for the sample
alone.
2. Referenced Documents
NOTE 1—There are a number of alternative methods available for
2
2.1 ASTM Standards: determining total iron in an ashed solution such as Test Methods D2795
and D1068.
D482 Test Method for Ash from Petroleum Products
D1068 Test Methods for Iron in Water
4. Significance and Use
D1193 Specification for Reagent Water
4.1 The life cycle and cleanliness of a recirculating steel
D2795 Test Methods for Analysis of Coal and Coke Ash
3
mill rolling oil dispersion is affected by the amount of iron
(Withdrawn 2001)
present. This iron consists mainly of iron from acid pickling
E50 Practices for Apparatus, Reagents, and Safety Consid-
residues and iron from attrition of the steel sheet or rolls during
erations for Chemical Analysis of Metals, Ores, and
cold rolling. In sampling rolling oils for total iron it is difficult
Related Materials
to prevent adherence of iron containing sludge to the sample
E832 Specification for Laboratory Filter Papers
container.Thus,theaccuracyofatotalirondeterminationfrom
analiquotsampleissuspect.Thispracticeprovidesameansfor
ensuring that all iron contained in a sample is included in the
1
This test method is under the jurisdiction of ASTM Committee D02 on
analysis.
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.L0.04 on Metal Deformation Fluids and Lubricants.
4.2 Although less significant, the ash content is still an
Current edition approved April 15, 2009. Published July 2009. Originally
essential part of the procedure for obtaining a total iron
ϵ1
approved in 1981. Last previous edition approved in 2003 as D4042–93(2003) .
analysis. Generally, the ash will be mostly iron, and in many
DOI: 10.1520/D4042-93R09.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or cases,couldbeusedasasubstitutefortotalironindetermining
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
when to change the dispersion.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
5. Sampling
3
The last approved version of this historical standard is referenced on
www.astm.org. 5.1 Apparatus:
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D4042 − 93 (2009)
6.1.2 Electric Muffle Furnace, capable of maintaining a
temperature of 775 6 25°C (1427 6 45°F), preferably having
suitable apert
...
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.
´1
Designation:D 4042–93 (Reapproved 2003)
Test Method for Designation:D4042–93 (Reapproved 2009)
Standard Test Method for
Sampling and Testing for Ash and Total Iron in Steel Mill
1
Dispersions of Rolling Oils
This standard is issued under the fixed designation D4042; 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
1
superscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval. ´ NOTE—Warningnoteswereeditoriallymoved
into the standard text in June 2003.
1. Scope
1.1 This test method describes a procedure for sampling and testing dispersions of rolling oils in water from operating steel
rollingmillsfordeterminationofashandtotalironcontent.Itspurposeistoprovideatestmethodsuchthatarepresentativesample
may be taken and phenomenon such as iron separation, fat-emulsion separation, and so forth, do not contribute to analytical error
in determination of ash and total iron.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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 Sections 6 and 7.
2. Referenced Documents
2
2.1 ASTM Standards:
D482 Test Method for Ash from Petroleum Products
D1068 Test Methods for Iron in Water
D1193 Specification for Reagent Water
D2795 Test Methods for Analysis of Coal and Coke Ash
E50 PracticesforApparatus,Reagents,andSafetyConsiderationsforChemicalAnalysisofMetals,Ores,andRelatedMaterials
E832 Specification for Laboratory Filter Papers
3. Summary of Test Method
3.1 Polyethylene disposable sample bags in a suitable holding device are used to collect representative samples of
nonhomogeneous dispersions of rolling mill oils in water from an operating mill coolant system.
3.2 The collected sample and disposable bag are analyzed as one for ash and total iron.
3.2.1 Ash content is determined gravimetrically by evaporating all water from the sample bag before heating the residue and
bag in a muffle furnace to a constant weight (Test Method D 482D482).
3.2.2 Total iron content is determined by digesting the iron in the ashed sample and bag in an acidified solution. The iron in
the solution is reduced with stannous chloride and titrated with standardized potassium dichromate.
3.2.3 The ash and total iron contributed by a sample bag alone are determined separately and are subtracted from the values
of bag and sample to obtain the values for the sample alone.
NOTE 1—There are a number of alternative methods available for determining total iron in an ashed solution such as Test Methods D 2795 and D
1068D2795 and D1068.
1
This practice test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.L0 on Industrial Lubricants (Joint ASTM-ASLE).
Current edition approved May 10, 2003. Published July 2003. Originally approved in 1981. Last previous edition approved in 1998 as D 4042–93 (1998).on Petroleum
Products and Lubricants and is the direct responsibility of Subcommittee D02.L0.04 on Metal Deformation Fluids and Lubricants.
´1
Current edition approved April 15, 2009. Published July 2009. Originally approved in 1981. Last previous edition approved in 2003 as D4042–93(2003) . DOI:
10.1520/D4042-93R09.
2
Annual Book of ASTM Standards, Vol 05.01.
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
---------------------- Page: 1 ----------------------
D4042–93 (2009)
4. Significance and Use
4.1 The life cycle and cleanliness of a recirculating steel mill rolling oil dispersion is affected by the amount of iron present.
This iron consists mainly of iron from acid pickling residues and iron from attrition of the steel sheet or rolls during cold rolling.
In sampling rolling oils for total iron it is difficult to prevent adherence of iron containing sludge to the
...
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