Adopts ISO 6506-3:2005 to specify a method for the calibration of reference blocks to be used for the indirect verification of Brinell hardness testing machines as described in AS 1816.2.RECONFIRMATION NOTICETechnical Committee MT-009 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 20 March 2017.The following are represented on Technical Committee MT-009:Australasian Institute of Surface FinishingAustralian Chamber of Commerce and IndustryAustralian Industry GroupAustralian Steel InstituteBureau of Steel Manufacturers of AustraliaGalvanizers Association of AustraliaGalvanizing Association of New ZealandNew Zealand Metal Roofing Manufacturers