Safety Helmet Roll-off device
Purpose
Apply an initial load of a certain force to the rear of the helmet. Then, let a weight specified by the standard fall from a certain height so that the impact force is also applied to the helmet. In this way, the wearing stability performance of the helmet can be evaluated.
Test standard:
IS 4151 , ECE R22.05
Mass of initial load: 3 kg ± 0.1 kg
Mass of falling weight: 10 kg ± 0.01 kg
Lowering height: 0.5 meters ± 0.01 meters
Measuring method: manual
Electricity: 220V 50HZ
Test theory: vertical descent
Test steps:
1. previously to the ambient temperature and sanitary conditions for the conditions of the helmet, should be placed on the appropriate head shape and fixed in the appropriate head.
2. In the median vertical plane of the helmet, a device that guides and releases the fall with a total mass of 3 kg ± 0.1 kg is attached to the rear of the shell.
3. 10 kg ± 0.01 kg of falling mass is released and lowered from a height of 0.5 m ± 0.01 m. The guiding device should ensure that the impact velocity is not less than 95% of the theoretical velocity.
Отправить запрос, связаться с поставщиком
Другие товары поставщика
 |
FPC Flex Durability Test device | Standard ASTM F392 Product features 1. the stepper motor drive, high-precision positioning, low noise, can be used for a long time 2. program-c... |
 |
Sock wear tester | Product Introduction: Socks wear tester is a special equipment, mainly used to test the wear resistance of socks material. It evaluates the comfor... |
 |
Leather Freezing Flexing Tester | IntroductionLeatherFreezingFlexing tester is used for testing the upper leather, synthetic leather and other cold level, in order to fully understa... |
 |
Film impact Test device(Gardner) | Product Introduction: The coating impact resistance test device is mainly used to test the damage degree of the coating after the impact, which fu... |
 |
Automatic freezing point pour point cold tester | Product Introduction: The automatic freezing point pouring point Freezing point tester is suitable for petroleum, biological, chemical and other f... |
Похожие товары
 |
FH-77 Dissolved hydrogen meter | Продавец: Коллирон электроникс лимитед | Pen type dissolved hydrogen detector / dissolved hydrogen meter: used to measure the dissolved hy... |
 |
Xenon Arc Weather Ometer | Продавец: Standard Group (Hong Kong) Limited | Get a quote： Whats/App: +86 181 0160 0864 SI4000Xenon Arc Weather Ometer utilizes a xenon lamp ... |
 |
Xenotest | Light Fastness Tester Si220 (SunTest) | Продавец: Standard Group (Hong Kong) Limited | Get a quote： Whats/App:+86 180 0160 0864 A Light Fastness Tester, or Xenon Tester, Accelerated ... |
 |
Ozone Aging Chamber | Продавец: Standard Group (Hong Kong) Limited | Get a quote： Whats/App:+86 156 1874 6768 The Ozone Aging Chamber is a precision testing instrum... |
 |
Plastic Smoke Density Tester F313 | Продавец: Standard International Group (HK) Limited | Whats/App: +86 156 1874 6768 Web: standard-groups.com The F313 Plastic Smoke Density Tester is ... |
