1、Designation:D 656 87(Reapproved 1999)Standard Specification forPure Toluidine Red Toner1This standard is issued under the fixed designation D 656;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 p
2、arentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers the red pigment commerciallyknown as pure toluidine red toner.The pigment may bepurchased in the dry form or as a paste in
3、oil.2.Referenced Documents2.1 ASTM Standards:D 185 Test Methods for Coarse Particles in Pigments,Pastes,and Paints2D 280 Test Methods for Hygroscopic Moisture(and OtherMatter Volatile Under the Test Conditions)in Pigments2D 387 Test Method for Color and Strength of Color Pig-ments with a Mechanical
4、Muller3D 970 Test Methods for Para Red and Toluidine Red Pig-ments23.Composition and Properties3.1 Dry PigmentThe pigment shall consist of toluidinered toner(1-(2-nitro-p-tolylazo)-2-naphthol)with or withoutadmixturewithasmallquantityof(1-(2-nitro-p-methoxyphenyl-azo)-2-naphthol).It shall be free of
5、 anysubstrate and shall conform to the following requirements:Ash,max,%1.0Moisture and other volatile matter,max,%1.0Coarse particles(total residue retained on a No.325(45-m)sieve),max,%1.0Paranitraniline rednoneSolubility in chloroformcompleteResistance to acids and alkalisto pass testIdentity test
6、to pass test3.2 The mass color and character of the tint and the tintingstrength formed by a mixture with a white pigment shall bewithin mutually agreed upon limits of a standard acceptable toboth the purchaser and the seller.4.Sampling4.1 Two samples shall be taken at random from differentpackages
7、from each lot,batch,days pack,or other unit ofproduction in a shipment.When no markings distinguishingbetween units of production appear,samples shall be takenfrom different packages in the ratio of two samples for each 5tons(inch-pound or SI),except that for shipments of less than10 000 lb two samp
8、les shall be taken.At the option of thepurchaser,the samples may be tested separately,or afterblending in equal quantities the samples from the sameproduction unit to form a composite sample.5.Test Methods5.1 Tests shall be conducted in accordance with the appro-priate test methods.Test procedures n
9、ot covered by ASTMmethods shall be mutually agreed upon between the purchaserand the seller.5.2 Coarse ParticlesTest Methods D 185.5.3 MoistureTest Methods D 280.5.4 Color and TintTest Method D 387.5.5 SolubilityTest Methods D 970.5.6 IdentityTest Methods D 970.5.7 AshTest Methods D 970.6.Keywords6.
10、1 tint;tinting strength;toluidine;white pigmentThe American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connectionwith any item mentioned in this standard.Users of this standard are expressly advised that determination of the validity
11、of any suchpatent 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 technical committee and must be reviewed every five years andif not revised,either reapproved or withdrawn.Your comments are
12、invited either for revision of this standard or for additional standardsand should be addressed to ASTM Headquarters.Your comments will receive careful consideration at a meeting of the responsibletechnical committee,which you may attend.If you feel that your comments have not received a fair hearin
13、g you should make yourviews known to the ASTM Committee on Standards,100 Barr Harbor Drive,West Conshohocken,PA 19428.1This specification is under the jurisdiction of ASTM Committee D-1 on Paintand Related Coatings,Materials,and Applications,and is the direct responsibilityof Subcommittee D01.31 on
14、Pigment Specifications.Current edition approved June 26,1987.Published August 1987.Originallypublished as D 656 42 T.Last previous edition D 656 81.2Annual Book of ASTM Standards,Vol 06.03.3Annual Book of ASTM Standards,Vol 06.01.1Copyright ASTM,100 Barr Harbor Drive,West Conshohocken,PA 19428-2959,
15、United States.NOTICE:This standard has either been superceded and replaced by a new version or discontinued.Contact ASTM International(www.astm.org)for the latest information.NOTICE:This standard has either been superceded and replaced by a new version or discontinued.Contact ASTM International(www.
16、astm.org)for the latest information.This standard is copyrighted by ASTM,100 Barr Harbor Drive,West Conshohocken,PA 19428-2959,United States.Individualreprints(single or multiple copies)of this standard may be obtained by contacting ASTM at the above address or at 610-832-9585(phone),610-832-9555(fax),or serviceastm.org(e-mail);or through the ASTM website(http:/www.astm.org).D 6562NOTICE:This standard has either been superceded and replaced by a new version or discontinued.Contact ASTM Internati
