标准号:ANSI/NAPM IT2.4-1987
中文标准名称:摄影(感光学).航空照相用黑白胶片.ISO感光度和平均梯度的测定(ANSI/ISO 7829-1986、ANSI PH2.34-1987的重新确认和重新设计)
英文标准名称:Photography (Sensitometry) - Black-and-White Aerial Camera Films - Determination of ISO Speed and Average Gradient (reaffirmation and redesignation of ANSI/ISO 7829-1986, ANSI PH2.34-1987)
标准类型:G81
发布日期:1999/12/31 12:00:00
实施日期:1999/12/31 12:00:00
中国标准分类号:G81
国际标准分类号:37.040.20
适用范围:This standard specifies the method for determining the ISO speed and ISO average gradient of black-and-white negative camera film-process combinations used in aerial photography.