BS EN 15004-7:2017 Fixed firefighting systems. Gas extinguishing systems Physical properties and system design of gas extinguishing systems for IG-01 extinguishant

Gases
Fire safety in buildings
Fire safety
Occupational safety
Firefighting equipment
Design
Physical properties of materials
Safety measures
Firefighting
Fire extinguishers (built-in)
Argon
Fire extinguishers

Link: BS EN 15004-7:2017 Fixed firefighting systems. Gas extinguishing systems Physical properties and system design of gas extinguishing systems for IG-01 extinguishant
Source: BSI Standards

BS EN ISO 8596:2018 Ophthalmic optics. Visual acuity testing. Standard and clinical optotypes and their presentation

Visual perception
Size
Testing conditions
Ophthalmology
Grades (quality)
Ophthalmic test equipment
Dimensions
Ophthalmic equipment
Luminance
Optical measurement
Optical instruments
Standard measures
Angles (geometry)

Link: BS EN ISO 8596:2018 Ophthalmic optics. Visual acuity testing. Standard and clinical optotypes and their presentation
Source: BSI Standards