BSI: Something to think about when you buy a helmet.
For all you guys shopping for a helmet and dont know which to buy among the vast selection available today, take this into consideration before you purchase one
What is BSI?
a. BSI is one of the largest and most prestigious standards, quality assurance, inspection, testing and certification organizations in the world. Similar to the familiar UL Listing, the BSI offers testing and rating services for major manufactures with worldwide distribution interests. The BSI Inspectorate is a leading provider of inspection, analysis and testing services across the globe. A vital business within the BSI Group, BSI Inspectorate delivers confidence for buyers and sellers alike, as well as banks and governments involved in international trade the world over.
2. I heard that all of Europe has opted for the EC 22-05; does this mean that the BS 6658 Type A is no longer valid?
a. While a number of helmet manufacturers have opted for a single unifying standard for Europe (EC22-05) for economies of manufacture, BSI are still operating the Kitemark certification scheme for BS 6658 Type A, Type AF and Type B helmets and the helmets we import will continue to bear the prestigious BS 6658 Type A Kitemark.
3. You say that these helmets are .Batch Tested., what does this mean?
a. BSI testing is done in a "pre public release" fashion. When the manufacturer has produced a product "batch" of helmets, say 500 to 2000 units, and samples of that particular batch are sampled by a BSI representative and randomly tested at the BSI testing facilities - 5 for a production batch of 500, 13 for a batch of 501-1,200 and 20 for batches of 1,201-2000. Each production batch must be of the same model. Only after each of the helmets have passed a battery of specified tests are the BSI serialized decals then released for that specific batch and in that specific quantity
4. What happens if there is a performance failure during one of these tests?
a. Should any helmet fail any test, the entire batch is rejected and samples must be submitted for retest, following investigation of the problem and remedial action. This helps to insure that every helmet that could ultimately be worn by the end user came from a batch of helmets that was certified to comply with the standard. (Source . http://www.bsi-global.com/index.xalter )
5. How does this compare with Snell.s .post public release. testing?
a. With the Snell post public release testing program you find a random testing of helmets purchased off dealers shelves. If a helmet fails the random tests, the manufacturer is notified of the discrepancy and more random tests are performed. Should a manufacturer show repetitive failures, discussions are had between Snell and the manufacturer on ways to come back into compliance. Potentially, the manufacturer could loose their certification status. However, this sampling can be as low as four thousandth of one percent (.004%) of annual helmets sold for the higher volume manufacturers. In one example, only 16 helmets were tested of an approximate 400,000 helmets sold of one particular manufacturer in 2001 (Source . Ed Becker, Executive Director Snell Memorial Foundation: http://www.smf.org/). While this is within the .up to 2%. Snell states in their literature, it is quite obvious that in actuality, the BSI pre public release compliance testing is magnitudes more likely to catch defective helmets before they ever leave the factory floor, while the Snell system is simply much less likely to catch defective helmets or fraudulent manufacturers. The result can be helmets available to the riding public manufactured to comply with the Snell 2000 and DOT standards may not always do so. (Reference . National Highway Traffic Safety Administration . DOT Performance Compliance Test results: http://www.nhtsa.dot.gov/cars/testing/comply/fmvss218/index.html) This is a critical safety issue.
6. In addition to pre-public release batch testing, what does the BSI require of manufacturers to ensure only high quality products are made available to the public?
a. After each helmet model and shell size has passed original specifications and compliance tests and awarded BS 6658 Type A approval, there is an annual re-certification, and quarterly factory inspections for quality control. No other standards available in the USA offer this level of quality control.
7. Some helmet manufactures state that their helmets pass the BSI 6658 Type A standard in addition to Snell. How can I be sure that the helmet I am buying is BSI 6658 Type A approved?
a. While it is common for manufacturers to build helmet models to meet different standards around the world, due to the unique specifications each standard dictates, there is no assurance that any one build for any particular model would be approved by more than one standard with out being tested to that standard; only helmets bearing the serialized BSI blue Kite Mark are BSI 6658 Type A approved. With out this label, there has been no pre public release batch testing by the BSI and as such the BSI will not recognize it as passing the standard.
8. What does the Type A mean and how does it differ from a non type A helmet?
a. The Type A designation means that it meets the more severe impact criteria that is required to be recognized as race approved by the FIM, AMA, FORMULA-USA, WERA etc. and all other major racing organizations and race clubs in the USA.
9. Is it true that Suomy BSI certified helmets are over 300 grams lighter than the Suomy helmet certified to the Snell standard and if so, why?
a. Yes! A BSI certified Suomy helmet might be as much as 300 grams lighter than it.s Snell counterpart (we manufacture OEM helmets for Ducati and Aprilia to the Snell standard). The difference is merited out of the variances between the two standards protocols. These testing protocols may vary in such ways as head form weight, falling mass, measurements such as the distance velocity is measured above the impact site, velocity at point of impact and drop heights. The significant deviation between Snell and the BSI Type A is in the second drop height, with Snell.s second drop being higher than BSI.s second drop (most experts will agree that the second impact drop height for Snell is not relevant to motorcycling but reflects the particular demands of auto racing where the driver.s head may impact a roll cage several times during a crash). This differentiation results in a lighter, less rigid outer shell requirement to pass the demanding BSI 6658 Type A test. This decrease in shell rigidity allows the helmet to work in concert with the EPS system (expanded polystyrene) to better mitigate energies experienced at speeds where the rigid shell of the Snell configuration can fall short, without compromising the fundamental energy management of much higher energy loads. A helmet that performs to the standard at the lightest possible weight reduces total pivoting mass, head deceleration and will tire rider less, thus increasing safety. In addition, lighter helmets are more likely to be worn and wearing one is the single critical factor in the prevention of and reduction in head injury. (Source . The HURT Report Summary, Line #45 - www.cs.wisc.edu/~john/vfr/hurt.html University Of Wisconsin).
10. If the BSI standard is so good, why not simply build the helmet to meet both the BSI 6658 Type A and Snell 2000 standard as well, and avoid any confusion?
a. As mentioned above, the major deviation between the two standards in found in the second drop height. This requirement forces the manufacturer to build a much stiffer outer shell to perform well in the Snell 2000 second drop impact tests. This stiffer shell requirement may also prevent the helmet from passing the BSI 6658 Type A standard, by not allowing the helmet to start absorbing energy until a much higher threshold. By not allowing the helmet to begin managing energy at the typical speeds and energies a rider is most likely to experience, the Snell 2000 is counter intuitive to the BSI 6658 Type A.
11. What is the essential difference between the mandatory DOT standard and the voluntary standards such as Snell and BSI 6658 Type A?
a. While there are several significant differences between the DOT standard and other voluntary standards, the key difference has to do with something called .Dwell Time.. Dwell Time is best expressed as the duration in time above a pre-determined deceleration that the head, or brain is experiencing during impact. The DOT specification calls out a maximum allowable deceleration of 400g from a drop height of 1.8 meters with sustained energies above 200g to not exceed 2 milliseconds and 4 milliseconds above 150g. This energy duration, or dwell time, is an important consideration in preventing brain injuries at the anticipated energies a rider might experience in a fall. Both BSI 6658 Type A and Snell 2000 require a maximum deceleration of 300g, (a 100 G force reduction) but have no .dwell time. component built into the standard. However, it is important to note that while neither BSI Type A, nor Snell 2000 have a dwell time component, each standard MUST pass the DOT 218 dwell time requirement to be considered legal for street use in the USA.
For all you guys shopping for a helmet and dont know which to buy among the vast selection available today, take this into consideration before you purchase one
What is BSI?
a. BSI is one of the largest and most prestigious standards, quality assurance, inspection, testing and certification organizations in the world. Similar to the familiar UL Listing, the BSI offers testing and rating services for major manufactures with worldwide distribution interests. The BSI Inspectorate is a leading provider of inspection, analysis and testing services across the globe. A vital business within the BSI Group, BSI Inspectorate delivers confidence for buyers and sellers alike, as well as banks and governments involved in international trade the world over.
2. I heard that all of Europe has opted for the EC 22-05; does this mean that the BS 6658 Type A is no longer valid?
a. While a number of helmet manufacturers have opted for a single unifying standard for Europe (EC22-05) for economies of manufacture, BSI are still operating the Kitemark certification scheme for BS 6658 Type A, Type AF and Type B helmets and the helmets we import will continue to bear the prestigious BS 6658 Type A Kitemark.
3. You say that these helmets are .Batch Tested., what does this mean?
a. BSI testing is done in a "pre public release" fashion. When the manufacturer has produced a product "batch" of helmets, say 500 to 2000 units, and samples of that particular batch are sampled by a BSI representative and randomly tested at the BSI testing facilities - 5 for a production batch of 500, 13 for a batch of 501-1,200 and 20 for batches of 1,201-2000. Each production batch must be of the same model. Only after each of the helmets have passed a battery of specified tests are the BSI serialized decals then released for that specific batch and in that specific quantity
4. What happens if there is a performance failure during one of these tests?
a. Should any helmet fail any test, the entire batch is rejected and samples must be submitted for retest, following investigation of the problem and remedial action. This helps to insure that every helmet that could ultimately be worn by the end user came from a batch of helmets that was certified to comply with the standard. (Source . http://www.bsi-global.com/index.xalter )
5. How does this compare with Snell.s .post public release. testing?
a. With the Snell post public release testing program you find a random testing of helmets purchased off dealers shelves. If a helmet fails the random tests, the manufacturer is notified of the discrepancy and more random tests are performed. Should a manufacturer show repetitive failures, discussions are had between Snell and the manufacturer on ways to come back into compliance. Potentially, the manufacturer could loose their certification status. However, this sampling can be as low as four thousandth of one percent (.004%) of annual helmets sold for the higher volume manufacturers. In one example, only 16 helmets were tested of an approximate 400,000 helmets sold of one particular manufacturer in 2001 (Source . Ed Becker, Executive Director Snell Memorial Foundation: http://www.smf.org/). While this is within the .up to 2%. Snell states in their literature, it is quite obvious that in actuality, the BSI pre public release compliance testing is magnitudes more likely to catch defective helmets before they ever leave the factory floor, while the Snell system is simply much less likely to catch defective helmets or fraudulent manufacturers. The result can be helmets available to the riding public manufactured to comply with the Snell 2000 and DOT standards may not always do so. (Reference . National Highway Traffic Safety Administration . DOT Performance Compliance Test results: http://www.nhtsa.dot.gov/cars/testing/comply/fmvss218/index.html) This is a critical safety issue.
6. In addition to pre-public release batch testing, what does the BSI require of manufacturers to ensure only high quality products are made available to the public?
a. After each helmet model and shell size has passed original specifications and compliance tests and awarded BS 6658 Type A approval, there is an annual re-certification, and quarterly factory inspections for quality control. No other standards available in the USA offer this level of quality control.
7. Some helmet manufactures state that their helmets pass the BSI 6658 Type A standard in addition to Snell. How can I be sure that the helmet I am buying is BSI 6658 Type A approved?
a. While it is common for manufacturers to build helmet models to meet different standards around the world, due to the unique specifications each standard dictates, there is no assurance that any one build for any particular model would be approved by more than one standard with out being tested to that standard; only helmets bearing the serialized BSI blue Kite Mark are BSI 6658 Type A approved. With out this label, there has been no pre public release batch testing by the BSI and as such the BSI will not recognize it as passing the standard.
8. What does the Type A mean and how does it differ from a non type A helmet?
a. The Type A designation means that it meets the more severe impact criteria that is required to be recognized as race approved by the FIM, AMA, FORMULA-USA, WERA etc. and all other major racing organizations and race clubs in the USA.
9. Is it true that Suomy BSI certified helmets are over 300 grams lighter than the Suomy helmet certified to the Snell standard and if so, why?
a. Yes! A BSI certified Suomy helmet might be as much as 300 grams lighter than it.s Snell counterpart (we manufacture OEM helmets for Ducati and Aprilia to the Snell standard). The difference is merited out of the variances between the two standards protocols. These testing protocols may vary in such ways as head form weight, falling mass, measurements such as the distance velocity is measured above the impact site, velocity at point of impact and drop heights. The significant deviation between Snell and the BSI Type A is in the second drop height, with Snell.s second drop being higher than BSI.s second drop (most experts will agree that the second impact drop height for Snell is not relevant to motorcycling but reflects the particular demands of auto racing where the driver.s head may impact a roll cage several times during a crash). This differentiation results in a lighter, less rigid outer shell requirement to pass the demanding BSI 6658 Type A test. This decrease in shell rigidity allows the helmet to work in concert with the EPS system (expanded polystyrene) to better mitigate energies experienced at speeds where the rigid shell of the Snell configuration can fall short, without compromising the fundamental energy management of much higher energy loads. A helmet that performs to the standard at the lightest possible weight reduces total pivoting mass, head deceleration and will tire rider less, thus increasing safety. In addition, lighter helmets are more likely to be worn and wearing one is the single critical factor in the prevention of and reduction in head injury. (Source . The HURT Report Summary, Line #45 - www.cs.wisc.edu/~john/vfr/hurt.html University Of Wisconsin).
10. If the BSI standard is so good, why not simply build the helmet to meet both the BSI 6658 Type A and Snell 2000 standard as well, and avoid any confusion?
a. As mentioned above, the major deviation between the two standards in found in the second drop height. This requirement forces the manufacturer to build a much stiffer outer shell to perform well in the Snell 2000 second drop impact tests. This stiffer shell requirement may also prevent the helmet from passing the BSI 6658 Type A standard, by not allowing the helmet to start absorbing energy until a much higher threshold. By not allowing the helmet to begin managing energy at the typical speeds and energies a rider is most likely to experience, the Snell 2000 is counter intuitive to the BSI 6658 Type A.
11. What is the essential difference between the mandatory DOT standard and the voluntary standards such as Snell and BSI 6658 Type A?
a. While there are several significant differences between the DOT standard and other voluntary standards, the key difference has to do with something called .Dwell Time.. Dwell Time is best expressed as the duration in time above a pre-determined deceleration that the head, or brain is experiencing during impact. The DOT specification calls out a maximum allowable deceleration of 400g from a drop height of 1.8 meters with sustained energies above 200g to not exceed 2 milliseconds and 4 milliseconds above 150g. This energy duration, or dwell time, is an important consideration in preventing brain injuries at the anticipated energies a rider might experience in a fall. Both BSI 6658 Type A and Snell 2000 require a maximum deceleration of 300g, (a 100 G force reduction) but have no .dwell time. component built into the standard. However, it is important to note that while neither BSI Type A, nor Snell 2000 have a dwell time component, each standard MUST pass the DOT 218 dwell time requirement to be considered legal for street use in the USA.