Thermoset helmet shells
Thermoset helmet shells are not affected by sunlight (UV rays) and have excellent ageing resistance (low
brittleness). These helmets' period of use is limited mainly by mechanical damage
thermoset material should not be used for more than 10 years from the date of manufacture.
Since the thermoset helmets' linings are made of thermoplastic material, they should be changed at least twice
during the service life.
*
This also includes hairline cracks in the surface structure, which in combination with moisture may lead to gradual fatigue of the helmet shell.
Thermoplastic helmet shells
Thermoplastic helmet materials are more sensitive to UV than thermoset helmets.
They should therefore be checked regularly. If crackling sounds
or the helmet visor is bent, this indicates embrittlement of the helmet shell and it must be replaced in this case.
**
To roughly assess the embrittlement of helmet shells made of non-fibreglass-reinforced thermoplastic, the
so-called "crackle test" is recommended. Gently push the helmet shell in laterally with the hands or slightly bend the visor. If you can hear crackling
or pops when pressing your ear against it, the helmet should no longer be used.
The protective helmet should be discarded at that point. SCHUBERTH helmets made of thermoplastic materials
should not be used longer than 4 years according to DGUV Rule 112-193 - Use of head protection. Please also note
the applicable regulations in the country of use as well as recommendations of the competent institutions regarding
the service life of safety helmets (in Germany the valid version of DGUV Rule 112-193 - Use of head protection) when
determining your helmet's duration of use.
The periods according to DGUV Rule 112-193 - Use of head protection mentioned here are values determined by
studies, which may vary in practice depending on the operating conditions of the helmet. Therefore, a safety helmet
may well be fully functional and capable of protection after these periods have expired.
Notes on use
Proper handling of the protective helmet is a prerequisite for its proper function. Please carry out a regular check of
the helmet shell and the lining. If damage is detected, replace the helmet. After a heavy impact, the protective helmet
may no longer be worn. This applies even if the helmet does not show any external damage. Electrically insulating
helmets must not be used alone. It is necessary to use other compatible PPE (personal protective equipment) ac-
cording to the risks of the work involved. Before use, check if the helmet's class is sufficient for the nominal voltage
expected to be present during use. Insulating helmets should not be exposed to situations where there is a risk of
partial reduction of insulating properties. If the helmet becomes dirty or contaminated (oil, tar, paint, etc.), the outside
should be carefully cleaned, especially the outer surface, according to the manufacturer's recommendations.
Warranty
SCHUBERTH grants the original purchaser a warranty for material and manufacturing defects of 2 (two) years from
the date of purchase if the helmet is used as intended. SCHUBERTH's liability is limited at its sole discretion to either
the repair or replacement of products that are demonstrably defective within the warranty period. The helmet must
not deviate from its original condition and/or be damaged by improper use.
Storage and transport
Protective helmets should be kept cool and dry in a protected place. They should be stored away from direct sunlight.
The helmet can, sufficiently wrapped in packing paper, be transported in the outer box. Insulating helmets must be
stored in a suitable box or container before first use and between each following use. They must not be squashed or
stored near any source of heat. A storage temperature in the range of 20±15°C is recommended.
Fields of application and types of protective helmets and their abbreviations
All safety helmets are marked with the date of manufacture, abbreviation of the material used, the type, the size and
the symbol for additional safety requirements.
The helmet shell's material abbreviations are located under the visor.
16
*
. SCHUBERTH helmets made of
are noticeable when the helmet shell is compressed
**
Explanation of the material abbreviations
Thermoplastic helmet shell material:
ABS = Helmet shell made of acrylonitrile-butadiene-styrene copolymer
(HD)PE = Helmet shell made of high-density polyethylene
PP = Helmet shell made of polypropylene
Thermoset helmet shell material:
UP-GF = Helmet shell made of fibreglass-polyester
PF-SF = Helmet shell made of phenolic textile
Label
Explanation of label
EN 397
European standard for which approval has been granted
0299
Number of the supervising inspection body
01/2016
Example of production month and year (January 2016)
Very low temperature (according to DIN EN 397)
–20 °C or –30 °C
-20°C = Helmet for use at low temperatures
as the case may be
(e.g. outdoors in severely cold conditions)
–30°C = Helmet for use e.g. in cold storage
Very high temperature (according to DIN EN 397)
+150 °C
Helmet intended for use when working in high ambient temperatures
(e.g. blast furnaces).
Electrical insulation (according to DIN EN 397)
440 V AC
Helmet intended to protect the user against short-term inadvertent
contact with live conductors with AC voltage up to 440 volts.
Metal splashes (according to DIN EN 397)
MM
Helmet intended for use in work with molten metal
(e.g. foundry).
Lateral deformation (according to DIN EN 397)
LD
Increased lateral stiffness.
Electrical insulation for work on low-voltage systems (according to DIN
EN 50365)
Helmet intended for live-line working or in the vicinity of live parts up to
1000 V AC or 1500 V DC.
Antistatic dissipative according to EN 60079-32-2
Helmet, which is electrostatically safe and is suitable for intended
use in potentially explosive atmospheres in all zones for explosion groups
I and II A.
Class definition according to DIN EN 50 365
AC voltage test
Helmet class
kV (RMS value)
0
5
Test current of
Test for disruptive
AC voltage test
discharge
mA (RMS value)
kV (RMS value)
3.5
10
17