ASTM_D_4899_-_99_2020.pdf

Designation:D489999(Reapproved 2020)Standard Practice forAnalysis of Vegetable Tanning MaterialsGeneral1This standard is issued under the fixed designation D4899;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice is intended for use in the chemical analysisof all vegetable tanning materials.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D4900 Test Method for Lignosulfonates(Sulfite Cellulose)in Tanning ExtractsD4901 Practice for Preparation of Solution of Liquid Veg-etable Tannin ExtractsD4902 Test Method for Evaporation and Drying of Analyti-cal SolutionsD4903 Test Method for Total Solids and Water in VegetableTanning Material ExtractsD4904 Practice for Cooling of Analytical SolutionsD4905 Practice for Preparation of Solution of Solid,Pastyand Powdered Vegetable Tannin ExtractsD6401 Test Method for Determining Non-Tannins and Tan-nin in Extracts of Vegetable Tanning MaterialsD6402 Test Method for Determining Soluble Solids andInsolubles in Extracts of Vegetable Tanning MaterialsD6403 Test Method for Determining Moisture in Raw andSpent MaterialsD6404 Practice for Sampling Vegetable Materials Contain-ing TanninD6405 Practice for Extraction of Tannins from Raw andSpent MaterialsD6406 Test Method for Analysis of Sugar in VegetableTanning MaterialsD6407 Test Method for Analysis of Iron and Copper inVegetable Tanning MaterialsD6408 Test Method for Analysis of Tannery LiquorsD6409 Practice for Color Tests with Sheepskin SkiverD6410 Test Method for Determining Acidity of VegetableTanning Liquors2.2 ALCA Methods:A1 Analysis of Vegetable Tanning MaterialsGeneral3A5 Extraction of Raw and Spent Materials3A6 Moisture in Raw and Spent Materials3A10 Preparation of Solution of Liquid Extracts3A11 Preparation of Solution of Solid,Pasty,and PowderedExtracts3A12 Cooling of Analytical Solutions3A13 Evaporation and Drying of Analytical Solutions3A20 Total Solids and Water3A21 Soluble Solids and Insolubles3A22 Non-Tannins and Tannin3A25 Analysis of Tannery Liquors3A30 Sugar in Tanning Materials3A31 Copper and Iron in Tanning Materials3A40 Color Tests with Sheepskin Skiver3A50 Lignosulfates(Sulfite Cellulose)3A60 Official Certification3J10 Sampling of Vegetable Materials Containing Tannin32.3 Federal SpecificationDD-V-582 Volumetric Apparatus,Glass41This practice is under the jurisdiction ofASTM Committee D31 on Leather andis the direct responsibility of Subcommittee D31.01 on Vegetable Leather.Thispractice has been adapted from and is a replacement for Method A1 of the OfficialMethods of the American Leather Chemists Association.Current edition approved Dec.1,2020.Published December 2020.Originallyapproved in 1989.Last previous edition approved in 2016 as D489999(2016).DOI:10.1520/D4899-99R20.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Official Methods of the American Leather Chemists Association.Availablefrom theAmerican Leather ChemistsAssociation(ALCA),University of Cincinnati,P.O.Box 210014,Cincinnati,OH 452210014.4Available from Standardization Documents Order Desk,Bldg.4 Section D,700Robbins Ave.,Philadelphia,PA 19111-5094,Attn:NPODS.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.13.Significance and Use3.1 Vegetable tanning materials are natural products con-taining various substances of varying composition,concentra-tion and quality.3.2 The methods referenced are useful for analyzing andtesting vegetable tanning materials for moisture,water-extractable substances,cold-soluble fractio