BS 4274-1:1968

Visual acuity test types-Specification for test charts for clinically determining distance visual acuity

BSI Group, 01/26/1968

Publisher: BS

File Format: PDF

$76.00$152.40

Description

Published:26/01/1968

Pages:12

File Size:1 file

Note:This product is unavailable in Ukraine, Russia, Belarus

Basic requirements for test charts designed for either internal or external illumination, employing English (Roman) capital letters to determine the distance visual acuity. Provision is also made for the single letter C (Landolt or broken ring) and the single letter E (illiterate E) in various orientations.

All current amendments available at time of purchase are included with the purchase of this document.

More BS standard pdf

BS 11/30217696 DC

BS ISO 23317. Implants for surgery. In vitro evaluation for apatite-forming ability of implant materials

$148.00 $296.70

BS 8298-3:2010

Code of practice for the design and installation of natural stone cladding and lining-Stone-faced pre-cast concrete cladding systems

$90.00 $180.34

BS PD ISO/TR 12802:2010

Nanotechnologies. Model taxonomic framework for use in developing vocabularies. Core concepts

$125.00 $251.46

BS DD ISO/TS 25114:2010

Intelligent transport systems. Probe data reporting management (PDRM)

$147.00 $294.64