The EN397 standard for Safety Helmets requires each helmet to bear a moulded or printed marking featuring the following indications:
a) the European standard number
b) the name or the manufacturer identification mark
c) date of the quarter and the year of manufacture
d) the helmet type
e) the size or size range
Further indications, like instructions or recommendations of adjustment, assembling, use, cleaning, disinfecting, maintenance, revision and storage, are specified in the instructions for use.The standard requires a helmet to pass mandatory tests including shock absorption, resistance to penetration, flame resistance and chinstrap anchorage.
There are additional options within EN397:
-20ºC / -30ºC - Protection at low temperature
440V a.c. - Short term protection from accidental contact with
conductors up to this voltage
LD - Some protection from lateral deformation
MM - Molten Metal splash test
Relating to Industrial Bump Caps, which are intended to provide protection against collision with a stationary object – bumping against scaffolding etc. A bump cap does not provide protection against falling or thrown objects and should not be used where a safety helmet is required.
Shells are primarily made using UV stabilised HDPE (High Density
Polyethylene) or ABS (Acrylonitrile Butadiene Styrene).
Harnesses are normally made using low density Polyethylene
or Terylene webbing.
• Replacement Harnesses, low density polyethylene or terylene
• Wheel Ratchet or Slip Ratchet fastening
• Helmet Mounted Lights
• Eye Protectors
• Face Visor
• Helmet Mounted Earmuffs
Care & Maintenance
The helmet or bump cap shell may be cleaned with soap and water, drying with a soft cloth. They should not be cleaned with abrasive substances or solvents and must not be stored in direct sunlight or in contact with chemicals. Helmets should be regularly inspected by the wearer. Any helmet showing more than superficial abrasions or scuffing to the shell should be replaced.
Given the treatment that most head protection receives, it is unlikely that it would offer adequate protection after 2 years general usage.