1、ASTM DI063 51 0757530 0012773 5 9 Resignation:D 1063-51(Reapproved 1987)Standard Test Method for Ash in Rosin This standard is issued under the fued designation D 1063;the number immediately following the designation indicates the year of original adoption or,in the case of revision,the year of last
2、 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.Scape 1.1 This method covers the determination of the nonvol-atile matter remaining after a sample of rosin is completely burned and i
3、gnited.2.Procedure 2.1 Ignite a platinum or other heat-resistant dish(por-celain,quarfz,silica)having a capacity of 50 to 100 ml,cool in a desiccator,and weigh to the nearest 0.0001 g.2.2 Weigh 20.0 g,to the nearest 0.1 g,of rosin into the dish.Place it on a ring-stand close under a flue pipe in a h
4、ood and heat gently with a bunsen burner until the rosin can be ignited at the surface.(Rosin burns with an extremely This method is under the jurisdiction of ASTM Committee D-1 on Paint and Related Coatings and hlaterials and is the direct responsibility of Subcommitfee W1.34 an Naval Stores.Curren
5、t edition approved Sept.30,1951.Originally issued 1949.Replaces D 1063-49 T.smoky flame and the smoke must be carried off through the flue,)Remove the burner and aUow the rosin to burn completely,reheating from time to time to bring about a continuous combustion.When the flame finaliy dies out,remov
6、e the dish from under the flue and burn off as much of the carbon residue with the burner as can be so removed.Stir the contents of the dish once or twice with a fine platinum or nichrome wire to break up any sintered carbon residue.2.3 Place the dish in a mume furnace,preferably electri-cally heate
7、d,at a temperature of about 250C,and raise the temperature slowly to 500C.Maintain the temperature at 500 to 550C until ali carbonaceous matter has been consumed,Remove the dish from the furnace to a desic-cator,covering at once with a warmed watch glass to prevent air currents from carrying off any
8、 of the light,flu ash.Ailow to cool to room temperature and weigh to the nearest 0.0001 g.2.4 Calculate the percentage of ash to the nearest 0.01%.lhe American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connection with any item mentio
9、ned in this stendard.Users of this standard are expressly advised that determination of the validify of any such patent rights,and the risk of infringement of such rights,are entirely their own responsibility.This standard is subject to revision at any time by the responsible technlcal committee and
10、 must be reviewed every five years and if not revised.either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters.Your comments will receive careful consideration at a meeting of the responsibl
11、e technical committee,whlch you may attend.If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards,1916 Race S t.,Philadelphia,PA 19103.149 NOTICE:This standard has either been superseded and replaced by a new version or discontinued.Contact ASTM International(www.astm.org)for the latest information.
