ASTM D5347-19
(Test Method)Standard Test Method for Determination of the Ash Content of Fats and Oils
Standard Test Method for Determination of the Ash Content of Fats and Oils
SIGNIFICANCE AND USE
3.1 This test method is intended to determine the ash content of fats and oils used in the softening and stuffing of leather, as well as those used in the manufacture of products for such purpose. The ash content of fats and oils is measured for the purpose of quality assurance.
SCOPE
1.1 This test method covers the determination of the ash content of fats and oils used in the softening and stuffing of leather and in the manufacture of fatliquors and other softening and stuffing compounds. This test method was derived from Test Method D1951.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See Section 5 for specific hazard statements.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Designation: D5347 − 19
Standard Test Method for
1
Determination of the Ash Content of Fats and Oils
This standard is issued under the fixed designation D5347; 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 such purpose. The ash content of fats and oils is measured for
the purpose of quality assurance.
1.1 This test method covers the determination of the ash
content of fats and oils used in the softening and stuffing of
4. Apparatus
leather and in the manufacture of fatliquors and other softening
4.1 Crucible, porcelain or high-silica glass (Note 1), 50-mL
and stuffing compounds. This test method was derived from
capacity.
Test Method D1951.
NOTE 1—Platinum is not recommended. Boiled oils or oils contami-
1.2 The values stated in SI units are to be regarded as
nated with driers containing lead may ruin platinum by alloy formation.
standard. No other units of measurement are included in this
4.2 Electric Muffle Furnace.
standard.
1.3 This standard does not purport to address all of the 4.3 Desiccator, containing an efficient desiccant.Anhydrous
safety concerns, if any, associated with its use. It is the calcium sulfate (CaSO ), phosphorus pentoxide (P O)or
4 2 5
responsibility of the user of this standard to establish appro- concentrated sulfuric acid (H SO , sp gr 1.84) are satisfactory.
2 4
priate safety, health, and environmental practices and deter- (Warning—See 5.1 and 5.2 for specific hazards.) A silica gel
mine the applicability of regulatory limitations prior to use. desiccant can also be used as a safe alternative.
See Section 5 for specific hazard statements.
NOTE 2—Magnesium perchlorate and barium perchlorate are also
1.4 This international standard was developed in accor-
efficient desiccators and were previously listed in this section. However
dance with internationally recognized principles on standard-
because of their explosive danger, and the availability of other safer
materials, the recommendation for their use has been discontinued.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
4.4 Oil Sample Bottle, 4-oz (120-mL).
mendations issued by the World Trade Organization Technical
4.5 Triangle, Nichrome or clay.
Barriers to Trade (TBT) Committee.
5. Hazards
2. Referenced Documents
5.1 Phosphorus Pentoxide is a strong oxidizer and reacts
2
2.1 ASTM Standards:
violently with water, reducing agents, and organic matter.
D1951 Test Method for Ash in Drying Oils and Fatty Acids
Causes burns. Avoid contact with skin or eyes, or clothing, or
3
(Withdrawn 2003)
inhalation as dust. Refer to supplier’s Material Safety Data
Sheet.
3. Significance and Use
5.2 Sulfuric Acid is corrosive to skin, eyes, and mucous
3.1 This test method is intended to determine the ash
membranes in the form of liquid, mist, or fumes. It causes
content of fats and oils used in the softening and stuffing of
severe burns. Take care to prevent the contact of the acid with
leather,aswellasthoseusedinthemanufactureofproductsfor
eyes or skin, or on clothing. In making dilute solutions, always
add the acid to water with care. See supplier’s Material Safety
1
This test method is under the jurisdiction ofASTM Committee D31 on Leather Data Sheet.
and is the direct responsibility of Subcommittee D31.08 on Fats and Oils This test
method was developed in cooperation with the American Leather Chemists Assn.
6. Procedure
(Method H 27-1957).
6.1 Ignite the crucible in the muffle furnace at 550 to 650°C.
Current edition approved April 1, 2019. Published May 2019. Originally
approved in 1993. Last previous edition approved in 2012 as D5347 – 95R12. DOI:
Cool slightly, place in a desiccator for 1 h, and weigh to 0.1
10.1520/D5347-19.
mg.
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
6.2 Fill a 4-oz (120-mL) sample bottle with the sample and
Standards volume information, refer to the standard’s Document Summary page on
weigh to 0.05 g. Pour about 20 g of the sample from the bottle
the ASTM website.
3
into the crucible supported on a triangle, using care so that no
The last approved version of this historical standard is referenced on
www.astm.org. oil runs down the outside of the crucible or bottle.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D5347 − 19
6.3 Heat gently by moving a flame on the bottom and sides or,
of the crucible until
...
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: D5347 − 95 (Reapproved 2012) D5347 − 19
Standard Test Method for
1
Determination of the Ash Content of Fats and Oils
This standard is issued under the fixed designation D5347; 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
1.1 This test method covers the determination of the ash content of fats and oils used in the softening and stuffing of leather
and in the manufacture of fatliquors and other softening and stuffing compounds. This test method was derived from Test Method
D1951.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. See Section 5 for specific hazard statements.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
3
D1951 Test Method for Ash in Drying Oils and Fatty Acids (Withdrawn 2003)
3. Significance and Use
3.1 This test method is intended to determine the ash content of fats and oils used in the softening and stuffing of leather, as
well as those used in the manufacture of products for such purpose. The ash content of fats and oils is measured for the purpose
of quality assurance.
4. Apparatus
4.1 Crucible, porcelain or high-silica glass (Note 1), 50-mL capacity.
NOTE 1—Platinum is not recommended. Boiled oils or oils contaminated with driers containing lead may ruin platinum by alloy formation.
4.2 Electric Muffle Furnace.
4.3 Desiccator, containing an efficient desiccant. Anhydrous calcium sulfate (CaSO ), phosphorus pentoxide (P O ) or
4 2 5
concentrated sulfuric acid (H SO , sp gr 1.84) are satisfactory. (Warning—See 5.1 and 5.2 for specific hazards.) A silica gel
2 4
desiccant can also be used as a safe alternative.
NOTE 2—Magnesium perchlorate and barium perchlorate are also efficient desiccators and were previously listed in this section. However because of
their explosive danger, and the availability of other safer materials, the recommendation for their use has been discontinued.
4.4 Oil Sample Bottle, 4-oz (120-mL).
4.5 Triangle, Nichrome or clay.
5. Hazards
5.1 Phosphorus Pentoxide is a strong oxidizer and reacts violently with water, reducing agents, and organic matter. Causes
burns. Avoid contact with skin or eyes, or clothing, or inhalation as dust. Refer to supplier’s Material Safety Data Sheet.
1
This test method is under the jurisdiction of ASTM Committee D31 on Leather and is the direct responsibility of Subcommittee D31.08 on Fats and Oils This test method
was developed in cooperation with the American Leather Chemists Assn. (Method H 27-1957).
Current edition approved April 1, 2012April 1, 2019. Published April 2012May 2019. Originally approved in 1993. Last previous edition approved in 20062012 as
D5347 – 95(2006).R12. DOI: 10.1520/D5347-95R12.10.1520/D5347-19.
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
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D5347 − 19
5.2 Sulfuric Acid is corrosive to skin, eyes, and mucous membranes in the form of liquid, mist, or fumes. It causes severe burns.
Take care to prevent the contact of the acid with eyes or skin, or on clothing. In making dilute solutions, always add the acid to
water with care. See supplier’s Material Safety Data Sheet.
6. Procedure
6.1 Ignite the crucible in the muffle furnace at 550 to 650°C. Cool slightl
...
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