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Re: [rmsusa] trust these cams:
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USnavy
Oct 12, 2012, 3:41 AM
Views: 9764
Registered: Nov 6, 2007
Posts: 2667
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rmsusa wrote: In reply to: Would you trust your life to a product manufactured in a dysfunctional country bordering on Third World status?* China? .... BD, Petzl, etc., etc. I would any day as long as it has that CE Stamp.
In order to get a good measure of quality control, you need to test a reasonable number (say 1%) of samples from EVERY batch that is manufactured. Even then, it is possible a few bad units can go through. That is why companies like Metolius proof test EVERY cam they sell to 50% of its rated load before they let it leave the factory. Top notch overhead lifting equipment manufacturers do the same. They proof test every product to about 200% of its SWL before it leaves the factor. That is what is required for true guaranteed quality control.
Another indicator of good quality control is a 3-sigma certification that is verified every single batch. Because of how the 3-sigma formula works, in order to obtain a respectable 3-sigma breaking strength, the product needs to have a low standard deviation. Low standard deviations are really hard to achieve if a manufacturer has low quality control on their product(s).
(This post was edited by USnavy on Oct 13, 2012, 8:13 PM)
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Post edited by USnavy
() on Oct 12, 2012, 3:42 AM
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Post edited by USnavy
() on Oct 12, 2012, 3:46 AM
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Post edited by USnavy
() on Oct 13, 2012, 8:13 PM
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