Standard No.:	GB/T 2923-1995
English Name:	Determination of ISO speed of black-and-white pictorial still camera negative film/process systems
Chinese Name:	黑白照相负片/加工组合ISO感光度的测定
Chinese Classification:	G80    Basic standards and general methods for photosensitive material
Professional Classification:	GB    National Standard
ICS Classification:	37.060.20 37.060.20    Motion picture films. Cartridges 37.060.20
Issued by:	CBTS
Issued on:	1995-1-2
Implemented on:	1996-8-1
Status:	valid
Superseding:	GB 2923-1982
Language:	English
File Format:	PDF
Word Count:	3000 words
Price(USD):	125.00
Delivery:	via email in 1~3 business day

本标准规定了照相用黑白负片ISO感光度的测定。本标准适用于使用通用药品和设备加工的胶片，但也适用于特殊工艺加工的胶片，例如，使用活化剂显影或热显影。本标准不适用于电影摄影、航空摄影、制版印刷、射线摄影和显微摄影胶片，也不适用于扩散转移系统的负片。