ISO 18929:2012确立了用于暗存储的银明胶照相反射打印的规范。它涵盖了所有重量的银明胶打印类型。 ISO 18929:2012适用于湿处理黑白银明胶照片，包括经过化学处理（用金、硒、硫或其他化学处理浴）以提高银图像持久性的照片。它也适用于单浴法处理的银明胶印刷品，单浴法包括硫代硫酸盐作为固色剂，然后进行常规清洗。

ISO 18929:2012 establishes the specifications for silver-gelatin photographic reflection prints intended for dark storage. It covers silver-gelatin print types of all weights. ISO 18929:2012 applies to wet-processed black-and-white silver-gelatin photographic prints, including those that have been chemically treated (with a gold, selenium, sulfur, or other chemical treatment bath) to improve the permanence of the silver image. It also applies to silver-gelatin prints processed by a monobath, which includes thiosulfate as a fixing agent followed by a conventional wash.