NEN ISO 11093-8:1998被替代
Paper And Board - Testing Of Cores - Determination Of Natural Frequency And Flexural Modulus By Experimental Modal Analysis
出版：Nederlands Normalisatie Instituut
專家解讀視頻
基本信息
標準編號： NEN ISO 11093-8:1998
發布時間：1998/8/1 0:00:00
標準類別：Standard
出版單位：Nederlands Normalisatie Instituut
標準頁數：5
標準簡介
Gives a method for the determination of the flexural modulus by using experimentally measured natural frequencies in the free-free mode of transverse vibration of cylindrical paper and board cores, which meet the following criteria: - internal diameter: 50 mm to 350 mm; - minimum wall thickness: 0,02 x internal diameter or not less than 2,0 mm; - minimum length of core: 8 x internal diameter.
替代本標準的新標準
等同采用的國際標準
ISO 11093-8:1997 - Identical
