docholiday, good info, it's been added
lurkingkknight, that's actually quite alarming. I just checked the actual spec to make sure, and it seems to ME that they've lowered the bar substantially.
The new high impact testing (the + mark) has new minimum requirements:
FACE SHIELD: ~4.08j
GOGGLES: ~2.84j
GLASSES: ~1.02j
Now only requires 6 strikes instead of the original 20
Here is the document I looked at
http://support.automationdirect.com/...NSI%20spec.pdf
page 19 (p12 of the document)
Quote:
6.2.3 High Velocity Impact
When tested in accordance with Section 9.12, the
complete device shall be capable of resisting im-
pact from a 6.35 mm (0.25 in) diameter steel ball
traveling at the velocity specified in Table 5. No
contact with the eye of the headform is permitted
as a result of impact.
Table 5.
High Velocity Impact Testing
Device type Velocity
Welding helmets 45.72 m/s (150 ft/s)
Spectacles 45.72 m/s (150 ft/s)
Goggles 76.20 m/s (250 ft/s)
Faceshields 91.44 m/s (300 ft/s)
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So far as I can tell, this means Z87.1+ in the case of "ballistic glasses", no longer meets the minimum requirements of airsoft use.
Just so everyone doesn't freak out immediately, the minimum THICKNESS of the glasses (2.0mm) has not changed since the 2003 requirement of ~3j, but you'll no longer be covered if they break under airsoft use....
I'd like someone else to look up a different document, verify the result, and report back here before I make a "sky is falling" thread on safety glasses.