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以下内容来自OCR识别，不保证本文准确性。完整文件请预览PDF
EUROPEAN STANDARD EN101:1991
NORME EUROPEENNE
E餐芮E
July 1991
U0C666.635:691.443-41-033.6:620.178,143.3 hardness tests.
scratch hardness tests English version Ceramic tiles Determination of scratch hardness Carreaux et dalles ceramiques superficielle suivant 1'echelle de Mohs Bestimmung der Ritzharte der.
This European Standard was approved by CEN on 1991-07-17 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
任何CEN member. CEN EN101:1991
FOREWORD which is held by UNI. This European Standard was adopted by CEN on the countries: Munich on 11 and 12 May 1982 It was decided to consider Belgium Denmark France Greece Iceland Italy
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