ASTM D5557-95

Standard Test Method for Determination of Insoluble Impurities Contained in Fats and Oils Used in Fat Liquors and Stuffing Compounds

SCOPE
1.1 This test method covers the determination of the amount of impurities that are insoluble in kerosine and petroleum ether contained in fats and oils.
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.

General Information

• Status: Historical
• Publication Date: 14-May-1995
• Technical Committee: D31 - Leather
• Drafting Committee: D31.08 - Fats and Oils

Relations

• Replaced By: ASTM D5557-95(2001) - Standard Test Method for Determination of Insoluble Impurities Contained in Fats and Oils Used in Fat Liquors and Stuffing Compounds
• Effective Date: 15-May-1995

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 5557 – 95
Standard Test Method for
Determination of Insoluble Impurities Contained in Fats and
Oils Used in Fat Liquors and Stuffing Compounds
This standard is issued under the fixed designation D 5557; 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 Petroleum Ether.
4.4 Kerosine, refined petroleum distillate with a flash point
1.1 This test method covers the determination of the amount
not below 23°C (75°F) as determined by Test Method D 56
of impurities that are insoluble in kerosine and petroleum ether
using the tag closed tester. The kerosine shall be filtered
contained in fats and oils.
through a Gooch crucible, prepared as in 4.1, before using.
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
5. Procedure
only.
5.1 Use the residue from the moisture and volatile determi-
1.3 This standard does not purport to address all of the
nation (see Test Method D 5556) or a sample prepared in the
safety concerns, if any, associated with its use. It is the
same manner.
responsibility of the user of this standard to establish appro-
5.2 Add to the residue 50 mL of kerosine and, after heating
priate safety and health practices and determine the applica-
on a water bath to dissolve the fat, filter through the prepared
bility of regulatory limitations prior to use.
Gooch crucible with the aid of a vacuum. Wash the contents of
2. Referenced Documents the crucible with five 10 mL portions of hot kerosine, allowing
each portion to drain before adding the next.
2.1 ASTM Standards:
5.3 Then wash the residue in the crucible thoroughly with
D 56 Test Method for Flash Point by Tag Closed Tester
petroleum ether to remove all of the kerosine. Dry the crucible
D 5556 Test Method for Determination of the Moisture and
and contents to constant weight at 101 6 1°C, cool to room
Other Volatile Matter Contained in Fats and Oils Used in
temperature in a desiccator, and weigh.
Fat Liquors and Softening Compounds
6. Calculation and Report
3. Significance and Use
6.1 Report the calculation of insoluble impurities as per-
3.1 This test method is intended for the determination of
centage:
insoluble impurities contained in fats and oils used in the
fatliquors and stuffing compounds. gain in weight of crucible 3 100
% insoluble impurities 5 (1)
weight of sample taken for moisture
4. Apparatus and Reagents
6.2 Reference this test method in the test report.
4.1 Gooch Crucible, prepared with a fine
...