ASTM D5355-95(2006)

Standard Test Method for Specific Gravity of Oils and Liquid Fats

SIGNIFICANCE AND USE
This test method is used to measure the specific gravity of all oils and liquid fats that are used to soften leather, or that are used in products to soften leather. The specific gravity is one parameter that can be used to monitor the quality of these products.
SCOPE
1.1 This test method covers the determination of the specific gravity of oils and liquid fats by calculating the ratio of the weight of a unit volume of the sample to the weight of a unit volume of water at 25°C.  
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.

General Information

• Status: Historical
• Publication Date: 31-Mar-2006
• ICS: 75.080 - Petroleum products in general
• Technical Committee: D31 - Leather
• Drafting Committee: D31.08 - Fats and Oils

Relations

• Replaces: ASTM D5355-95(2001) - Standard Test Method for Specific Gravity of Oils and Liquid Fats
• Effective Date: 01-Apr-2006
• Replaced By: ASTM D5355-95(2012) - Standard Test Method for Specific Gravity of Oils and Liquid Fats
• Effective Date: 01-Apr-2012
• Referred By: ASTM D7666-12(2019) - Standard Specification for Triglyceride Burner Fuel
• Effective Date: 01-Apr-2006

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D5355 – 95 (Reapproved 2006)
Standard Test Method for
1
Specific Gravity of Oils and Liquid Fats
This standard is issued under the fixed designation D5355; 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 4.4 Thermometer, laboratory thermometer having a range
from−20 to 102°C with 0.1 or 0.2 subdivisions.
1.1 Thistestmethodcoversthedeterminationofthespecific
gravity of oils and liquid fats by calculating the ratio of the
5. Procedure
weight of a unit volume of the sample to the weight of a unit
5.1 Calibration of the Specific Gravity Bottles—Clean and
volume of water at 25°C.
dry thoroughly and then fill with recently boiled and cooled
1.2 The values stated in SI units are to be regarded as the
distilled water at 20 to 23°C. Fill the bottle to overflowing by
standard.
holdingthebottleonitssideinsuchamannerastopreventthe
1.3 This standard does not purport to address all of the
entrapment of air bubbles. Insert the stopper and immerse in a
safety concerns, if any, associated with its use. It is the
water bath at 25 6 0.2°C. Keep the entire bulb completely
responsibility of the user of this standard to establish appro-
coveredwithwaterandholdatthespecifiedtemperaturefor30
priate safety and health practices and determine the applica-
min.Carefullyremoveanywaterthathasexudedfromtheside
bility of regulatory limitations prior to use.
opening.Removethebottlefromthebathandwipecompletely
2. Terminology dry. Weigh the bottle and contents. Calculate the weight of
water in the flask by subtracting the weight of the empty bottle
2.1 Definitions:
from the weight of the bottle plus the water.
2.1.1 density—weight/unit volume expressed as grams per
5.2 Specific Gravity at 25/25°C:
centimetre.
5.2.1 Melt the sample and filter through filter paper to
2.1.2 liquid fats—fats that melt below 58°C.
remove any impurities and the last traces of moisture. The
2.1.3 oils—substances that are fluid at 25°C, consisting of
sample must be completely dry.
glycerides of fatty acids, aliphatic hydrocarbons, and aromatic
5.2.2 Cool the sample from 20 to 23°C and fill the bottle to
hydrocarbons.
overflowing, holding the bottle on its side in such a manner as
2.1.4 specific gravity—theratioofthedensityofasubstance
to prevent the entrapment of air bubbles.
to the density of the reference substance.
5.2.3 Insertthestopper,immerse,andholdinthewaterbath
3. Significance and Use
at 25 6 0.2°C for 30 min.
5.2.4 Carefully wipe off any oil that has come through the
3.1 This test method is used to measure the specific gravity
capillary opening and remove from the bath. Clean and dry
of all oils and liquid fats that are used to soften leather, or that
thoroughly.
are used in products to soften leather. The specific gravity is
5.2.5 Weigh the bottle and contents. Calculate the specific
one parameter that can be used to monitor the quality of these
gravity as direct
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