標準號：BS ISO 7004-2002
中文標準名稱：攝影.工業用射線照相膠片.置于X-射線和γ-射線下的膠片ISO感光速度和ISO平均速度梯度G2和G4的測定
英文標準名稱：Photography. Industrial radiographic films. Determination of ISO speed, ISO average gradient and ISO gradients G2 and G4 when exposed to X- and gamma-radiation
標準類型：G81
發布日期：2002/10/16 12:00:00
實施日期：2002/10/16 12:00:00
中國標準分類號：G81
國際標準分類號：37.040.25
適用范圍：This International Standard specifies methods for determining sensitometric curve shape, ISO speed, ISO average gradient and ISO gradients G2 and 64 for industrial radiographic systems consisting of film and film processing when exposed directly to X-rays and γ-rays. The measurement of characteristics of film systems used in industrial radiography with fluorescent intensifying screens is not specified in this International Standard. NOTE Units of measured energy are given for information in annex A.