ASTM D5347-95(2012)

Standard Test Method for Determination of the Ash Content of Fats and Oils

SIGNIFICANCE AND USE
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 and health practices and determine the applicability of regulatory limitations prior to use. See Section 5 for specific hazard statements.

General Information

• Status: Historical
• Publication Date: 31-Mar-2012
• ICS: 75.080 - Petroleum products in general
• Technical Committee: D31 - Leather
• Drafting Committee: D31.08 - Fats and Oils

Relations

• Replaces: ASTM D5347-95(2006) - Standard Test Method for Determination of the Ash Content of Fats and Oils
• Effective Date: 01-Apr-2012
• Replaced By: ASTM D5347-19 - Standard Test Method for Determination of the Ash Content of Fats and Oils
• Effective Date: 01-Apr-2019
• Referred By: ASTM D7666-12(2019) - Standard Specification for Triglyceride Burner Fuel
• Effective Date: 01-Apr-2012

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D5347 − 95 (Reapproved 2012)
Standard Test Method for
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.
NOTE 1—Platinum is not recommended. Boiled oils or oils contami-
1. Scope
nated with driers containing lead may ruin platinum by alloy formation.
1.1 This test method covers the determination of the ash
4.2 Electric Muffle Furnace.
content of fats and oils used in the softening and stuffing of
leather and in the manufacture of fatliquors and other softening
4.3 Desiccator, containing an efficient desiccant.Anhydrous
and stuffing compounds. This test method was derived from
calcium sulfate (CaSO ), phosphorus pentoxide (P O)or
4 2 5
Test Method D1951.
concentrated sulfuric acid (H SO , sp gr 1.84) are satisfactory.
2 4
(Warning—See 5.1 and 5.2 for specific hazards.)
1.2 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
NOTE 2—Magnesium perchlorate and barium perchlorate are also
standard.
efficient desiccators and were previously listed in this section. However
because of their explosive danger, and the availability of other safer
1.3 This standard does not purport to address all of the
materials, the recommendation for their use has been discontinued.
safety concerns, if any, associated with its use. It is the
4.4 Oil Sample Bottle, 4-oz (120-mL).
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4.5 Triangle, Nichrome or clay.
bility of regulatory limitations prior to use. See Section 5 for
specific hazard statements.
5. Hazards
5.1 Phosphorus Pentoxide is a strong oxidizer and reacts
2. Referenced Documents
violently with water, reducing agents, and organic matter.
2.1 ASTM Standards:
Causes burns. Avoid contact with skin or eyes, or clothing, or
D1951 Test Method for Ash in Drying Oils and Fatty Acids
inhalation as dust. Refer to supplier’s Material Safety Data
(Withdrawn 2003)
Sheet.
3. Significance and Use
5.2 Sulfuric Acid is corrosive to skin, eyes and mucous
membranes in the form of liquid, mist, or fumes. It causes
3.1 This test method is intended to determine the ash
severe burns. Take care to prevent the contact of the acid with
content of fats and oils used in the softening and stuffing of
eyes or skin or on clothing. In making dilute solutions, always
leather,aswellasthoseusedinthemanufactureofproductsfor
add the acid to water with care. See supplier’s Material Safety
such purpose. The ash content of fats and oils is measured for
Data Sheet.
the purpose of quality assurance.
4. Apparatus
6. Procedure
4.1 Crucible, porcelain or high-silica glass (Note 1), 50-mL
6.1 Ignite the crucible in the muffle furnace at 550 to 650°C.
capacity.
Cool slightly, place in a desiccator for 1 h, and weigh to 0.1
mg.
This test method is under the jurisdiction ofASTM Committee D31 on Leather 6.2 Fill a 4-oz (120-mL) sample bottle with the sample and
and is the direct responsibility of Subcommittee D31.08 on Fats and OilsThis test
weigh to 0.05 g. Pour about 20 g of the sample from the bottle
method was developed in cooperation with the American Leather Chemist
...