BS 4274-1:1968

Заменен

Visual acuity test types, Specification for test charts for clinically determining distance visual acuity — 12 стр.

Заменен на

BS 4274-1:2003

ICS

11.040.70 Ophthalmic. Including ophthalmic implants, glasses, contact lenses and their cleaning products / Офтальмологическое оборудование