1、Designation:D 475 67(Reapproved 1996)e1Standard Specification forPure Para Red Toner Pigment1This standard is issued under the fixed designation D 475;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number
2、 in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.e1NOTEKeywords were added editorially in May 1996.1.Scope1.1 This specification covers the red pigment commerciallyknown as pure para red toner.It is avail
3、able in two Types:TypeI,light,and Type II,dark.2.Referenced Documents2.1 ASTM Standards:D 970 Test Methods for Para Red and Toluidine Red Pig-ments23.Composition and Properties3.1 Dry Pigment:3.1.1 Type IThe pigment shall be in a soft dry form andshall consist of para red toner,light(1-(p-nitro-phen
4、yl-azo)-2-naphthol)free of any substrate.3.1.2 Type IIThe pigment shall be in a soft dry form andshall consist of para red toner,light(1-(p-nitro-phenyl-azo)-2-naphthol)mixed with a small quantity of 1-(p-nitro-phenyl-azo)-2-naphthol-7-sulfonic acid free of any substrate.3.2 The pigments shall confo
5、rm to the following require-ments:Type IType IIAsh,max,%3.03.0Moisture and other volatilematter,max,%1.01.0Coarse particles(total residueretained on a 45-m(No.325)sieve),max,%1.51.5Solubility in chloroformcomplete.Resistance to acidsto pass testto pass testResistance to alkalisto pass testequal to s
6、tandardIdentity testto pass testto pass test3.3 The mass color and character of the tint formed bymixture with a white pigment shall be the same as,and thestrength not less than,that of a reference sample mutuallyagreed upon by the purchaser and the seller.4.Sampling4.1 Two samples shall be taken at
7、 random from differentpackages 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 each10 000 lb(5 000 kg),except that for shipments of l
8、ess than10 000 lb two samples 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 Test Meth-ods D 970.6
9、.Keywords6.1 pigment;pure para red;red toner;toluidine red pigment;toner 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 th
10、at determination of the validity 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 reapprove
11、d or withdrawn.Your comments are 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 comment
12、s have not received a fair hearing 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,andApplications,and is the direct responsi
13、bility ofSubcommittee D01.31 on Pigment Specifications.Current edition approved Nov.30,1967.Originally published as D 475 38 T.Last previous edition D 475 49.2Annual Book of ASTM Standards,Vol 06.03.1AMERICAN SOCIETY FOR TESTING AND MATERIALS100 Barr Harbor Dr.,West Conshohocken,PA 19428Reprinted from the Annual Book of ASTM Standards.Copyright ASTM
