1、ICS 25.100.70Schleifmittel auf Unterlagen Rechteckige Schleifbltter mitStaubabsauglchern (ISO 21949 : 2001)This standard incorporates International StandardISO 21949 Coated abrasives Plain sheets with holes for dust extraction.A comma is used as the decimal marker.National forewordThis standard has
2、been prepared by ISO/TC 29 Small tools, SC 5 Grinding wheels and abrasives.The responsible German body involved in its preparation was the Normenausschuss Werkzeuge undSpannzeuge (Tools and Clamping Devices Standards Committee), Technical Committee Schleifmittel aufUnterlagen.DIN 50014 is the standa
3、rd corresponding to International Standard ISO 554 referred to in clause 2 of theISO Standard.AmendmentsDIN 69177-2, July 1989 edition, has been superseded by the specifications of DIN ISO 21949.Previous editionDIN 69177-2: 1989-07.National Annex NAStandard referred to(and not included in Normative
4、reference and Bibliography)DIN 50014 Artificial climates in technical applications Standard atmospheresRef. No. DIN ISO 21949 : 2001-11English price group 07 Sales No. 040703.02DEUTSCHE NORM November 2001ISO 21949Continued overleaf.ISO Standard comprises 5 pages. No part of this standard may be repr
5、oduced without the prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).Coated abrasivesPlain sheets with holes for dust extraction(ISO 21949 : 2001)Supersedes DIN 69177-2,July 1989 edition.Page 1ISO 21949 : 2001Coated abrasivesPlain sheets with holes for dust extractionPage 2ISO 21949 : 2001Page 3ISO 21949 : 2001Page 4ISO 21949 : 2001Page 5ISO 21949 : 2001
