ASTM D6017-97

Standard Test Method for Determination of Magnesium Sulfate (Epsom Salt) in Leather

SCOPE
1.1 This test method covers quantitatively determining the magnesium sulfate (epsom salt) in leather.  
1.2 The values given 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: 09-Oct-1997
• Technical Committee: D31 - Leather
• Drafting Committee: D31.06 - Chemical Analysis

Relations

• Replaced By: ASTM D6017-97(2003) - Standard Test Method for Determination of Magnesium Sulfate (Epsom Salt) in Leather
• Effective Date: 10-May-2003

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 6017 – 97
Standard Test Method for
Determination of Magnesium Sulfate (Epsom Salt) in
Leather
This standard is issued under the fixed designation D 6017; 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 5.3 Ammonium Chloride.
5.4 Ammonium Hydroxide, 1 to 1 and 1 to 9 parts by volume
1.1 This test method covers quantitatively determining the
with distilled water.
magnesium sulfate (epsom salt) in leather.
5.5 Ammonium Nitrate Solution, 10 g dissolved in distilled
1.2 The values given in SI units are to be regarded as the
water and made up to 100 mL.
standard.
5.6 Ammonium Oxalate, saturated solution.
1.3 This standard does not purport to address all of the
5.7 Ferric Chloride Solution, 10 g dissolved in distilled
safety concerns, if any, associated with its use. It is the
water and made up to 100 mL.
responsibility of the user of this standard to establish appro-
5.8 Methyl Orange Indicator, 0.05 %.
priate safety and health practices and determine the applica-
5.9 Sodium Ammonium Hydrogen Phosphate, saturated so-
bility of regulatory limitations prior to use.
lution.
2. Referenced Documents
6. Procedure
2.1 ASTM Standards:
6.1 Unless otherwise specified in the material specification,
D 3790 Test Method for Volatile Matter (Moisture) of
2 determine the moisture content of the composite sample from
Leather by Oven Drying
which the test specimen is drawn, in accordance with Test
2.2 Federal Standards:
Method D 3790. Determine the weight of the composite
Federal Test Standard No. 311, Method 6541 Magnesium
specimens for moisture content at the same time and under the
Sulfate (Epsom Salt)
same ambient conditions as the specimens weighed for chemi-
3. Significance and Use
cal tests.
6.2 Place the specimen in a tared porcelain crucible, 5 g
3.1 This test method distinguishes magnesium sulfate from
weighed to the nearest 0.001 g, and record the value as W .
other water soluble non-tanning salts found in leather. 2
Place the weighed specimen in a cold muffle furnace or
4. Apparatus
precarbonize over a burner prior to placing in a hot furnace.
Gradually raise the temperature of the furnace to 600 6 25°C
4.1 Platinum Crucible.
and maintain at this temperature for 60 min. Remove the
4.2 Filtering Crucible.
crucible and contents, cool in a desiccator, and weigh. Replace
4.3 Suction Flask.
in the furnace at 600 6 25°C for 30 min and repeat the cooling
4.4 Muffle Furnace.
and weighing procedure until a constant weight is obtained (6
5. Reagents
0.01 g). If it is difficult to obtain a constant weight, leach the
residue with hot distilled water and filter through an ashless
5.1 Hydrochloric Acid, specific gravity 1.19.
filter paper. Place the filter paper in the crucible and ash. Add
5.2 Nitric Acid, specific gravity 1.42.
the filtrate to the crucible and evaporate. The crucible shall then
be put back in the muffle furnace and heated, cooled, and
This test method is under the jurisdiction of ASTM Committee D-31 on Leather weighed as above until a constant weight (6 0.01 g) has been
and is the direct responsibility of Subcommittee D31.06 on Chemical Analysis—
obtained.
General. This test method was developed from Federal Test Method Standard No.
6.3 Moisten the ash with distilled water and add 15 mL of
311, Method 6541 in cooperation with the U.S. Army Natick Research Development
hydrochloric acid (specific gravity 1.19) to the crucible.
& Engineering Center, Natick MA and the Defense Personnel Support Center
Directorate of Clothing and Textiles, Philadelphia PA.
Transfer the contents of the crucible to a 400 mL beaker and
Current edition approved Oct. 10, 1997. Published June 1998. Originally
dilute to about 60 mL with distilled water. Add two drops of
published as D 6017 – 96. Last previous edition D 6017 – 96.
2 nitric acid (specific gravity 1.42) and heat the solution on a
Annual Book of ASTM Standards, Vol 15.04.
steam bath for about 15 min. Add ammonium hydroxide (1:1)
Available from Superintendent of Documents, U.S. Government Printing
Office, Washington, DC 20402.
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NOTICE: This standard has eithe
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