BS EN ISO 15004-1:2009 Ophthalmic instruments - Fundamental requirements and test methods - Part 1: General requirements applicable to all ophthalmic instruments (ISO 15004-1:2006)
BS EN ISO 15004-2:2007 Ophthalmic instruments - Fundamental requirements and test methods - Light hazard protection
ISO 7944:1998 Optics and optical instruments - Reference wavelengths