ASTM_F_129_-_97_2002.pdf

Designation:F 129 97(Reapproved 2002)Standard Practice forAmount of Ink Deposit on Carbon Paper and Inked Ribbons,Other Than Fabric Type1This standard is issued under the fixed designation F 129;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(e)indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice covers the determination of the amount ofink deposit on carbon paper and inked ribbons,other thanfabric type.1.2 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 and health practices and determine the applica-bility of regulatory limitations prior to use.See specificwarning statements in 6.1 and 9.3.2.Referenced Documents2.1 ASTM Standards:D 685 Practice for Conditioning Paper and Paper Productsfor Testing2F 221 Terminology Relating to Carbon Paper and InkedRibbon Products and Images Made Therefrom23.Terminology3.1 For definitions of terms used in this practice,refer toTerminology F 221.4.Summary of Practice4.1The amount of ink deposit is gravimetrically deter-mined by analytically weighing a conditioned test specimen.The ink deposit is removed by the use of a suitable solvent inan ultrasonic cleaner.The sample with the coating is condi-tioned and reweighed.The amount of ink deposit is calculated.5.Apparatus5.1 Analytical Balance,with a sensitivity to 0.1 mg.5.2 Ultrasonic Bath,with or without heater.5.3 Template or Cutter(Note 1),for ease in calculatingream weight of carbon paper and coated film.The size of thistemplate should be 2.2 by 3 in.(56 by 76 mm).However,anysize sample is suitable if the proper conversion factor and anappropriately sensitive balance are employed.NOTE1The template is prepared from flat steel stock.The thicknessdepends on the amount of use and should be thick enough to lie flat.6.Reagent6.1 Care should be taken to select the extraction solvent sothat only the ink is removed from substrates.(WarningVapors from solvents can be toxic when inhaled over pro-longed periods.Some solvents commonly used may be listedas carcinogenic.Other are flammable and suitable precautionsshould be taken.Handle with care and use only in properlyventilated area to avoid breathing vapors.A fume hood isrecommended.)7.Test Specimen7.1 Cut a representative test sample of the desired size fromthe conditioned specimen using a template.The use of a punchand die system is strongly recommended.8.Conditioning8.1 Allow the test specimen to stabilize under room condi-tions for 15 min for routine testing.8.2 Allow the test specimen to condition 1 h at 23.06 2.0Cand 506 2%relative humidity for a more precise determina-tion(see Practice D 685).9.Procedure9.1 Place the sample coating on a sheet of flat,smoothcardboard and accurately cut a sample 2.2 by 3 in.(56 by 76mm)or an equivalent area of the carbon paper or film coatingthat has been conditioned in accordance with 8.1 or 8.2.9.2 Weigh the sample on an analytical balance.Record thisweight to the nearest 0.1 mg as coated weight.9.3 Set-up the ultrasonic bath by first filling the tank with atransfer medium(for example,warm tap water plus a wettingagent/detergent).Place two glass beakers(400 or 600 mLsuggested)of the desired solvent in a beaker positioning coverto suspend the beakers in the bath.Plug in the ultrasonic bathand turn power ON.If using a bath with a heater,turn the heatswitch to ON and allow the bath to stabilize to desiredtemperature.Heat may be necessary to remove some coatings.(WarningTemperature of the bath should not exceed theboiling point of the solvent.)9.4 Place the conditioned sample into a beaker of thedesired solvent.Remove as much of the coating as possible by1This test method is under the jurisdiction ofASTM Committee F05 on BusinessImaging Productsand is the direct responsibility of Subcommittee F05.02 on InkedTransfer Imaging Products.Current edition approved March 10,1997.Published May 1997.Originallypublished as F 129 70.Last previous edition F 129 84(1988).2Annual Book of ASTM Standards,Vol 15.09.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.this method.If necessary to remove any remaining ink deposit,carefully clean with solvent on a cloth.(The use of protectivegloves is recommended.)Rinse the sample in the secondbeaker of clean solvent.Allow the sample to condition inaccordance with 8.1 or 8.2.9.5 Weigh the sample and record the result to the nearest 0.1mg.Record as decoated weight.10.Calculation10.1 Calculate the difference between the initial weight andthe weight after the ink deposit has been removed.10.2The above calculated weight times 100 will give thepounds per ream of the ink deposit for a ream size of 20 by 30in.by 500 sheets(20