Specification for red and green filters used in ophthalmic dichromatic and dissociation tests Ingestion-build-50790 1 has been corrected

1 has been corrected

1 — Information about emission-related confirmed DTC(s)

BS EN 12094-3 helps in the evaluation of conformity of product by using initial type testing and factory production control method that verifies if the performance declarations represent the true behaviour of the product

intended to be connected to public low-voltage distribution systems of between 220 V and 250 V line to neutral at 50 Hz

Specification for red and green filters used in ophthalmic dichromatic and dissociation tests Ingestion-build-50790 1 has been corrected1 Scope This British Standard specifies requirements for red and green filters of glass or plastics materials used in ophthalmic tests as follows: a) dichromatic tests for ametropia, and b) dissociating the eyes in various tests of binocular co operation.