1、A153/A153M-16ashall be measured on at least five widely separated spots on aprior to shipments,unless otherwise specified,and shall be sospecimen.No individual spot measurement shall be cause forconducted as not to interfere unnecessarily with the operationrejection.If an individual spot does not pr
2、ovide a coatingof the works.thickness reading,this spot must be repaired in accordance9.Rejection and Retestwith 4.5.The five or more individual coating thicknessmeasurements on a specimen must be averaged to determine9.1 For all galvanized articles except those fasteners thatthe specimen average co
3、ating thickness.The average coatingmust meet the requirements of the Fastener Quality Act,thethickness for the inspection lot is determined by averaging thefollowing sections are used to determine rejection and retest-specimen average coating thickness values for the number ofing.specimens derived f
4、rom Section 6.9.2 When partial inspection of materials to determine con-7.3.3 The thickness of coating shall be determined by crossformity with visual requirements of Section 5 warrants rejec-section and optical measurement in accordance with Testtion of a lot,the galvanizer is not prohibited from s
5、orting theMethod B487,unless the method described in 7.3.2 is used.lot and submitting it once again for inspection.The thickness thus determined is a point value.No less thanfive such measurements shall be made at locations on the9.3 The number of specimens in a sample of a lot permittedspecimen,whi
6、ch are as widely dispersed as practical,so as toto fail to conformance tests shall be agreed upon between thebe representative of the whole surface of the specimen.Thegalvanizer and the purchaser.average of no less than five such measurements is the specimen9.4 If a set of test specimens fails to co
7、nform to theaverage coating thickness.The average coating thickness forrequirements of this specification,two additional sets shall bethe inspection lot is determined by averaging the specimentested,both of which shall conform to the requirements inaverage coating thickness values for the number of
8、specimensevery respect,or the lot of material represented by thederived from Section 6.specimens shall be rejected.7.4 Finish and Appearance-The test for finish and appear-9.5 Materials that have been rejected for reasons other thanance shall be conducted through visual inspection withoutembrittleme
9、nt are not prohibited from being stripped,additional magnification.regalvanized,and resubmitted for test and inspection.They7.5 Embrittlement-Hardware that is susceptible to em-shall then conform to the requirements of this specification.brittlement shall be tested in accordance with Practice A143/N
10、orE 6-Conformance to this specification does not guarantee zeroA143M.The tests shall be performed through agreementdefects.Depending on the size and configuration of the parts(smallbetween the galvanizer and the purchaser.diameter threaded parts and small washers as examples),a small amountof fall o
11、utmay exist in an inspection lot that is not detected during a7.6 Adherence-Determine adherence of the zinc coating tosample inspection.Issues include,but are not limited to,zinc build up inthe surface of the base metal by cutting or prying with the pointthe threads or bonded washers.Handling of the
12、se types of issues need toof a stout knife,applied with considerable pressure in a mannerbe negotiated between the purchaser and supplier.tending to remove a portion of the coating.The adherence shall10.Packagingbe considered inadequate if the coating delaminates in the formof a layer of skin so as
13、to expose the base metal in advance of10.1 The supplier shall employ such methods of packagingzinc-coated articles as shall be required to ensure their receiptthe knife point.Do not use testing carried out at edges orby the purchaser in satisfactory condition,with the use to becorners(points of lowe
14、st coating adherence)to determinemade of the article being taken into consideration.adherence of coating.Likewise,do not use removal of smallparticles of the coating by paring or whittling to determine11.Certificationfailure.11.1 When specified in the purchase order or contract,the8.Inspectionpurcha
15、ser shall be furnished certification that samples repre-senting each inspection lot have been either tested or inspected8.1 The inspector representing the purchaser shall haveas directed by this specification and the requirements have beenaccess at all times while work on the contract of the purchas
16、ermet.When specified in the purchase order or contract,a reportis being performed,to those areas of the manufacturers workof the test results shall be furnished.which concern the application of the zinc coating to thematerial ordered.The manufacturer shall afford the inspector12.Keywordsall reasonab
17、le facilities to satisfy him that the zinc coating is12.1 coatings,zinc;galvanized coatings;steel hardwarebeing furnished in accordance with this specification.Allzinc coated;steel products,metallic coated;zinc coatings,steelinspection and tests shall be made at the place of manufactureproducts446-A
18、153/A153M-16aSUMMARY OF CHANGESCommittee A05 has identified the location of selected changes to this standard since the last issue,A153/A153M-16,that may impact the use of this standard.(November 1,2016)(1)Added reference to F2329/F2329M in the new subsection1.3.ASTM Intemational takes no position r
19、especting the validity of any patent rights asserted in connection with any item mentionedin this standard.Users of this standard are expressly advised that determination of the validity of any such patent rights,and the riskof infringement of such rights,are entirely their own responsibility.This s
20、tandard 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 invited either for revision of this standard or for additional standardsand should be addressed to ASTM Internati
21、onal Headquarters.Your comments will receive careful consideration at a meeting of theresponsible technical committee,which you may attend.If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards,at the address shown below.Thi
22、s standard is copyrighted by ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.Individual reprints(single or multiple copies)of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585(phone),610-832-9555(fax),or serviceastm.org(e-mail):or through the ASTM website(www.astm.org).Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center,222Rosewood Drive,Danvers,MA 01923,Tel:(978)646-2600:http:/
