Portwest - Do You Know Booklet

DO YOU KNOW 13

This standard applies to protective helmets for industry where the helmet is intended to protect a static user from falling hazards. A series of impact tests must be carried out using a fixed head-form and a falling weight in order for a helmet to meet this standard. WHAT IS EN 397? THERE ARE FOUR COMPULSORY ELEMENTS TO EN397,IMPACT, PENETRATION, FLAMMABILITY AND ANCHORAGE

CHECK YOUR DATES In accordance with EN 397, marking of the helmet should include the year and quarter of manufacture. Period of obsolescence of the helmet and its components must be declared on the User Sheet which is delivered together with the helmet. INDUSTRIAL HELMETS

+50 0 C

+50 0 C

3KG

5KG

5KG

3KG +50 +50 C -10 C -10 C

0 0 C

0 0

ALL PORTWEST HELMETS HAVE A SHELF LIFE OF 7 YEARS FROM MANUFACTURING DATE

-10 0 C

Anchorage

-10 0 C

ANCHORAGE Helmets can only protect when retained on the head. EN 397 requires that either the helmet shell or the headband is fitted with a chinstrap or with the means of attaching one, i.e. anchorage points. Chin strap (where present) shall be released at a force between 15kg e 25kg (150N -250N) – due to failure of the anchorages only. Test conducted at +50°C after the helmet being submitted to penetration test.

IMPACT The helmet must not allow more than 5Kn of energy to spread to the head after a fall of a 5kg weight from a 1 meter height. This test is performed at room temperatures of both +50 °C and -10°C.

PENETRATION The tip of the test mass used (3 kg from 1m height) must not come into contact with the skull. This test is performed at room temperatures of +50°C and –10°C.

FLAMMABILITY The helmet is exposed to a flame and it must not burn with flame emission more than 5 seconds after removal of the flame source.