Standard No.:	GB/Z 20227-2006
English Name:	MIcrographics-Expungement,deletion,correction or amendment of records on microforms
Chinese Name:	缩微摄影技术 缩微记录的清除、删除、校正或修正
Chinese Classification:	A14    Library, Archives, Literature and Information
Professional Classification:	GB    National Standard
Issued by:	AQSIQ SAC
Issued on:	2006-4-19
Implemented on:	2006-10-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	150.00
Delivery:	via email in 1~3 business day

本指导性技术文件规定了从缩微品中去除信息所用的技术，为影像的剔除、校正或修正以及为确保文件的完整性建立了适当的方法。