2012DIN ISO 18901:2012-07 Imaging materials - Processed silver-gelatin-type black-and-white films - Specifications for stability (ISO 18901:2010)
2012DIN ISO 18901:2012 Imaging materials - Processed silver-gelatin-type black-and-white films - Specifications for stability (ISO 18901:2010)
2007DIN ISO 18901:2007 Imaging materials - Processed silver-gelatin type black-and-white films - Specifications for stability (ISO 18901:2002);English version of DIN ISO 18901:2007-06