Safety requirements of each different, and there is no uniform way. Usually contains several parts of the test, 1) environmental testing: high temperature, low temperature, the aging test. 2) impact test. 3) Pull with Elongation Test, test cap with the deformation. 4) off of the rolling test is to test the wear stability.

Not with test equipment vendors can conduct the testing and certification, qualified, is the result of regulations and relevant government departments authorized, usually impartial third-party certification body to EN1078, for example, qualified and SGS, TUV , INSPEC and other organizations with global visibility.

When an accident occurs, the head hit the pavement, the helmet on the one hand through the buffer tank (usually EPS) of the deformation heat, so that the force to fall was offset by the release, on the one hand, with its smooth surface, advantage of the opportunity to impact forward with open, reducing the strength of the head of the residence time, thus reducing head and brain may suffer damage.

helmets protect your head and reduce the drops may injury to the head. It consists of a thin layer of the shell (shell), a thickness of the liner (liner), with a hat band (strap) connected to form you can wear the hat. To improve its function, and some also with detachable lining hat (inner pad), anti-fly network (insect mesh), sun hat along (visor), adjust the size of the regulator (adjuster) and so on.

In the helmet's function, the liner plays the most important role, through the interior of the heat extrusion, offset impact, and reduce the force at the time head of stagnation, effectively protect the head and brain. General of two kinds: one is hard to be crushed, such as EPS, EPP, EPU; one is flexible can be squashed, Zobium. The former is most common.

EPS, Expandable Polystyrene, expandable polystyrene, livelihood products into use in 1952, to the quality of light, mature technology, can be mass production, process environment, the world's most popular material. EPU, Expanded PolyUrethane, than the EPS weight, has a very hard texture, and its manufacturing process as can be toxic, banned in most countries.

These small pinhole positioning pin on the mold. Helmets produced, for the base of the adjusting device or the other insert is fixed in the exact position, with the positioning pin to the completion position fixed. Small pinhole in the positioning pin, does not affect the security, therefore, almost all fatal helmet brand, such as: SPECIALISED, UVEX and RANKING on, have to use the products of such institutions, the use of such institutions helmet, also through various standard test.