ASTM D5347-95(2001)

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

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 the 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-Dec-1994
• ICS: 75.080 - Petroleum products in general
• Technical Committee: D31 - Leather
• Drafting Committee: D31.08 - Fats and Oils

Relations

• Replaces: ASTM D5347-95 - Standard Test Method for Determination of the Ash Content of Fats and Oils
• Effective Date: 01-Jan-1995
• Replaced By: ASTM D5347-95(2006) - Standard Test Method for Determination of the Ash Content of Fats and Oils
• Effective Date: 01-Apr-2006
• Referred By: ASTM D7666-12(2019) - Standard Specification for Triglyceride Burner Fuel
• Effective Date: 01-Jan-1995

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 2001)
Standard Test Method for
Determination of the Ash Content of Fats and Oils
This standard is issued under the fixed designation D 5347; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 4.3 Desiccator,containinganefficientdesiccant.Anhydrous
calcium sulfate (CaSO ), phosphorus pentoxide (P O)or
1.1 This test method covers the determination of the ash 4 2 5
concentrated sulfuric acid (H SO , sp gr 1.84) are satisfactory.
2 4
content of fats and oils used in the softening and stuffing of
(Warning—See 5.1 and 5.2 for specific hazards.)
leather and in the manufacture of fatliquors and other softening
and stuffing compounds. This test method was derived from
NOTE 2—Magnesium perchlorate and barium perchlorate are also
Test Method D 1951.
efficient desiccators and were previously listed in this section. However
because of their explosive danger, and the availability of other safer
1.2 The values stated in SI units are to be regarded as the
materials, the recommendation for their use has been discontinued.
standard.
1.3 This standard does not purport to address all of the
4.4 Oil Sample Bottle, 4-oz (120-mL).
safety concerns, if any, associated with its use. It is the
4.5 Triangle, Nichrome or clay.
responsibility of the user of this standard to establish appro-
5. Hazards
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. See Section 5 for 5.1 Phosphorus Pentoxide is a strong oxidizer and reacts
specific hazard statements.
violently with water, reducing agents, and organic matter.
Causes burns. Avoid contact with skin or eyes, or clothing, or
2. Referenced Documents
inhalation as dust. Refer to supplier’s Material Safety Data
2.1 ASTM Standards:
Sheet.
D 1951 Test Method for Ash in Drying Oils and Fatty
5.2 Sulfuric Acid is corrosive to skin, eyes and mucous
Acids
membranes in the form of liquid, mist, or fumes. It causes
severe burns. Take care to prevent the contact of the acid with
3. Significance and Use
eyes or skin or on clothing. In making dilute solutions, always
3.1 This test method is intended to determine the ash
add the acid to water with care. See supplier’s Material Safety
content of fats and oils used in the softening and stuffing of
Data Sheet.
leather,aswellasthoseusedinthemanufactureofproductsfor
6. Procedure
such purpose. The ash content of fats and oils is measured for
the purpose of quality assurance.
6.1 Ignite the crucible in the muffle furnace at 550 to 650°C.
Cool slightly, place in a desiccator for 1 h, and weigh to 0.1
4. Apparatus
mg.
4.1 Crucible, porcelain or high-silica glass (Note 1), 50-mL
6.2 Fill a 4-oz (120-mL) sample bottle with the sample and
capacity.
weigh to 0.05 g. Pour about 20 g of the sample from the bottle
into the crucible supported on a triangle, using care so that no
NOTE 1—Platinum is not recommended. Boiled oils or oils contami-
oil runs down the outside of the crucible or bottle.
nated with dri
...