MIL-PRF-3122J
D2810 Test Method for pH of Leather Chemical Tests
D2868 Test Method for Nitrogen Content (Kjedahl) and Hide Substance
Content of Leather
D3495 Test Method for Hexane Extraction of Leather
D3790 Test Method for Volatile Matter (Moisture) of Leather by Oven Drying
D4705 Test Method for Stitch Tear Strength of Leather, Double Hole
D6012 Test Method for Determination of Resistance of Leather to Color Stain Transfer
D6014 Test for determination of Dynamic Water Absorption (Leather surfaces)
D6015 Test Method for Static Water Absorption of Leather Surfaces
(Copies may be obtained from the American Society for Testing and Materials, 100 Barr
Harbor Drive, West Conshohocken, PA 19428.)
(Non-Government standards and other publications are normally available from the
organizations that prepare and distribute the documents. These documents also may be available
in or through libraries or other informational services.
2.4 Order of precedence. In the event of a conflict between the text of this document and the
references cited herein, the text of this document takes precedence. Nothing in this document
however, supersedes applicable laws and regulations unless a specific exemption has been
obtained.
3. REQUIREMENTS.
3.1 Material. The leather shall be full grain or corrected grain, chrome tanned cattlehide sides.
3.2 Staining. Except as noted below, the flesh side of the leather shall be tested for staining
(Bleeding) in accordance with paragraph 4.3. The stain on the test pad shall have an expanded
AATCC value of not less than 3.
Note: Leather which has a natural colored flesh side that has been subject to small amounts of
dye added to the drum in order to level the shade of the natural color need not be tested for
staining.
3.3 Finish. Corrected grain leather shall be buffed or snuffed only to the extent that is
necessary to remove superficial blemishes. The grain side of the leather shall have a light
application of finish containing only sufficient pigment to assist in making the color uniform.
The finish of the grain side shall be smooth.
3
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