標準號：BS ISO 18903-2003
中文標準名稱：成像材料.攝影膠片和相紙.尺寸變化測定
英文標準名稱：Imaging materials - Films and paper - Determination of dimensional change
標準類型：G81
發布日期：2003/1/31 12:00:00
實施日期：2003/1/31 12:00:00
中國標準分類號：G81
國際標準分類號：37.040.20
適用范圍：This International Standard specifies a method for determining the dimensional change of photographic films and papers caused by: — variations in equilibrium moisture content due to change in the relative humidity (RH) of the atmosphere (humidity coefficient of expansion); — change in temperature (thermal coefficient of expansion); — processing; — ageing. This International Standard deals with the moisture content and thermal history of the specimens before measurement, the atmospheric conditions during measurement, and the treatment of the data. It does not describe the various experimental techniques used to make the measurements. This International Standard is not suitable for determining the dimensional change of instant photographic film.