1、lb Designation:D 91 I-87-=-.I A-_-.AMERICAN SOCIETY FOR TESTINO AND MATERIALS 1916 Race SI.,Phiiadeiphla,Pa.19103 Reprinted from lhe Annual Book of A S T M Standards,Copyright A S T M If not listed in the current combined Index,will appear in the next edition.Standard Specification for Mercuric Oxid
2、e for Use in Antifouling Paints This standard is issued under the fixed designation D 91 1;the number immediately following the designation indicates the year of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A sup
3、erscript epsilon(e)indicates an editorial change since the last revision or reapproval.Chemically combined mercury,calculated as metallic 9 1 mercury,min,%(45ym)sieve,m a,%1.Scope antifouling paints.1.1 This specification covers mercuric oxide for use in Free mercury Coarse particles(total residue r
4、etained on a No.325 0.0 10 2.Referenced Documents 2.1 ASTMStandards:D 185 Test Methods for Coarse Particles in Pigments,Pastes,and Paints2 D284 Methods of Chemical Analysis of Mercuric Oxide Pigment2 3.Composition 3.1 The pigment shall consist of finely divided red or yellow mercuric oxide and shall
5、 conform.to the following requirements:This specification is under the jurisdiction of ASTMCommittee D-1 on Paint and Related Coatings and Materials and is the direct responsibility of Subcommittee W1.31 on Pigment Specifications.Current edition approved Aug.19,1987.Published October 1987.Originally
6、 published as D 91 1-47 T.Last previous edition D 91 1-86.Anniral Book o f ASTM Standards,Vol 06.02.4.Sampling 4.1 Two samples shall be taken at random from different packages from each lot,batch,days pack,or other unit of production in a shipment.When no markings distinguishing between units of pro
7、duction appear,samples shall be taken from different packages in the ratio of two samples for each 5 tons(inch-pound or SI),except that for shipments of less than 10 O00 lb two samples shall be taken.At the option of the purchaser,the samples may be tested separately or after blending in equal quant
8、ities the samples from the same production unit to form a composite sample.5.Test Methods ing ASTM test methods:D 284.5.1 Tests shall be conducted in accordance with the follow-5.2 Chemically Combined and Free Mercury-Methods 5.3 Coarse Particles-Test Methods D 185.The American Society for Testing a
9、nd Materials takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.Users of this standard are expressly advised that determination of the validity of any such patent rights,and the risk of infringement of such rights,are entire
10、ly their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised,elther reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standards and s
11、hould be addressed to ASTM Headquarters.Your comments will receive careful consideration at a meeting of the responsible 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 St.,Philadelphia,PA 19103.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.
