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From: mojo@mp-mojo.UUCP (Mojo Jones)
Newsgroups: net.cycle,net.auto,net.politics
Subject: Re: re Re Seat belts, Helmets and Freedom of Choice
Message-ID: <11.UUL1.1#119@mp-mojo.UUCP>
Date: Wed, 30-Jul-86 14:03:09 EDT
Article-I.D.: mp-mojo.11.UUL1.1#119
Posted: Wed Jul 30 14:03:09 1986
Date-Received: Fri, 1-Aug-86 20:42:02 EDT
References: <411@argus.UUCP>
Organization: MicroPro Int'l Corp.
Lines: 16
Xref: watmath net.cycle:1881 net.auto:11999 net.politics:17873

>            The helmet he was wearing was certified to pass the Snell test
> (I think) which involves dropping a heavy, pointed object onto the helmet,
> which must sustain no damage.
> -- 
> Ron DeBlock	KA2IKT
> 	uucp: ...!{allegra, ihnp4}!bellcore!argus!ron

The Snell test was changed in 1985.  Most current helmets will carry
the "Snell M85" sticker.  The penetration test was changed from a sharp
object to an I-beam about the size of a highway guard rail.  They felt
this was a more realistic test, I'm told.  The M in the M85 means the
helmet passed the motorcycle requirements, which are different from
the automobile requirements.

Helmets *significantly* reduce the deceleration of the brain against
the skull.  Thanks all for helping point that out.