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Description of ASTM-D6402 2009ASTM D6402 - 99(2009)Standard Test Method for Determing Soluble Solids and Insolubles in Extracts of Vegetable Tanning MaterialsActive Standard ASTM D6402 | Developed by Subcommittee: D31.01 Book of Standards Volume: 15.04 ASTM D6402Significance and Use This test method is used to determine the proportion of the total solids which are soluble solids and that proportion which are insoluble solids in a solution of tannin extract or in the water extract from raw or spent materials prepared for tannin analysis. The specimens are aliquots from the analytical solutions prepared from tannin extracts or the water extract solutions prepared from raw or spent materials. The soluble solids are defined as the portion of the total solids which are dissolved in the water and pass through a filter prepared by depositing a layer of Kaolin paste onto a standard filter paper. The insolubles are defined as the portion of the total solids which do not pass through the standard filter paper prepared with the layer of Kaolin paste. The results of this test method are dependent on a great many variables but particularly upon: The temperature conditions under which the solutions were prepared and stored and the temperature at which the current analysis is performed; The uniformity and consistency of the Kaolin paste layer deposited onto the filter paper; The rate of solution run-out from the pipette; etc. It is, therefore, essential that the method be followed exactly in order to obtain reproducible results both among specimens within a laboratory and for analyses between laboratories. 1. Scope 1.1 This test method is intended for use in determining the quantity of soluble solids and insolubles in solutions of tannin extracts, water extracts of vegetable tanning materials, or tanning liquors. This test method is applicable to the analysis of liquid, solid, pasty, and powdered tannin extracts and to the water extracts of raw or spent materials. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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.
ASTM Standards D4901 Practice for Preparation of Solution of Liquid Vegetable Tannin Extracts D4902 Test Method for Evaporation and Drying of Analytical Solutions D4903 Test Method for Total Solids and Water in Vegetable Tanning Material Extracts D4905 Practice for Preparation of Solution of Solid, Pasty and Powdered Vegetable Tannin Extracts D6403 Test Method for Determining Moisture in Raw and Spent Materials D6405 Practice for Extraction of Tannins from Raw and Spent Materials ALCA Methods A21 Soluble Solids and Insolubles Official Methods of the American Leather Chemists Association. Available from the American Leather Chemists Association, University of Cincinnati, P.O. Box 210014, Cincinnati, OH 45221-0014.Keywords insolubles; soluble solids; tannin analysis; vegetable tannin analysis; Insoluble matter content; Soluble solids/insolubles; Tanning analysis/materials; Vegetable-tanned leather; ICS Code ICS Number Code 59.140.10 (Processes and auxiliary materials) DOI: 10.1520/D6402-99R09 ASTM International is a member of CrossRef. ASTM D6402This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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