Ophthalmic optics and instruments. Electro-optical devices for enhancing low vision Ingestion-build-84997 Class A : − 65

Class A : − 65 °C to 260 °C

Who is BS 4444 – Electrical earth monitoring and protective conductor for

For reasons of precision

BS EN 15182-2:2019 supersedes BS EN 15182‑2:2007+A1:2009

1 MPa = 1 N/mm2) are considered gauge pressures

Ophthalmic optics and instruments. Electro-optical devices for enhancing low vision Ingestion-build-84997 Class A : − 651 Scope This International Standard applies to electro optical devices specified by the manufacturer for use by visually impaired persons, as low vision aids. It specifies electro optical and mechanical requirements and test methods. This International Standard does not cover optical devices for enhancing low vision which are specified in ISO 15253.