Welcome to biology-online.org! Please login to access all site features. Create account.
Log me on automatically each visit
| Page history
| Printable version
A lens that meets government specifications of impact resistance; the increased impact resistance required for safety lens's is obtained by tempering, by an ion-exchange process, or by using laminated or plastic lenses.
Please contribute to this project, if you have more information about this term feel free to edit this page
This page was last modified 21:16, 3 October 2005. This page has been accessed 952 times. What links here
| Related changes
| Permanent link
© Biology-Online.org. All Rights Reserved.
Register | Login
| About Us | Contact Us | Link to Us | Disclaimer & Privacy