Electric control equipment
Interfaces
Lighting equipment
Direct current
Digital signals
Link: BS EN IEC 62386-220:2019 Digital addressable lighting interface Particular requirements for control gear. Centrally supplied emergency operation (device type 19)
Source: BSI Standards
Testing
Dimensional space requirements
High voltage
Plugs (valves)
Plugs (electric)
Electrical equipment
Link: BS EN 50673:2019 Plug-in type bushings for 72,5 kV with 630 A and 1 250 A for electrical equipment
Source: BSI Standards
Railway vehicles
Capability approval
Electrical equipment
Railway electric traction equipment
Resistance measurement
Fire safety
Railway control systems
Link: BS EN 17095:2019 Railway applications. Rolling stock maintenance. Maintenance records
Source: BSI Standards
Equations
Algebra
Heat
Radiation
Safety engineering
Fire safety
Link: ISO 24678-7:2019 Fire safety engineering. Requirements governing algebraic formulae Radiation heat flux received from an open pool fire
Source: BSI Standards
Lubrication
Journal bearings
Grades (quality)
Tolerances of position
Plain bearings
Shafts (rotating)
Horizontal
Form tolerances
Roughness (surface)
Axial-thrust bearings
Collars (mechanical components)
Vertical
Designations
Accuracy
Dimensional tolerances
Bearings
Flanges
Link: BS ISO 12129-1:2019 Plain bearings. Tolerances Fits
Source: BSI Standards
Link: ISO 22568-1:2019 Foot and leg protectors. Requirements and test methods for footwear components Metallic toecaps
Source: BSI Standards
Link: ISO 12759-2:2019 Fans. Efficiency classification for fans Standard losses for drive components
Source: BSI Standards
Quality
Potable water
Hardness
Porcelain
Pipes
Water supply
Pressure pipes
Water
Corrosion resistance
Vitreous enamel
Valves
Pipe fittings
Testing
Link: ISO 11177:2019 Vitreous and porcelain enamels. Inside and outside enamelled valves and pressure pipe fittings for untreated and potable water supply. Quality requirements and testing
Source: BSI Standards
Test equipment
Aluminium
Specimen preparation
Atomic emission spectrophotometry
Emission spectrophotometry
Spectrochemical analysis
Chemical analysis and testing
Aluminium alloys
Measurement characteristics
Link: BS EN 14726:2019 Aluminium and aluminium alloys. Determination of the chemical composition of aluminium and aluminium alloys by spark optical emission spectrometry
Source: BSI Standards
