Laser Helpers

a knowledge base provided by Kentek with reference and discussion board information about laser technology, laser safety, and photonics history

A B C D E F G H I J K L M N O P Q R S T V W Y Z
Sh Sp St
Sha Sho

Shall

By

As used in any American National Standard Institute (ANSI) Z136.x document, the word is to be understood as implementing a mandatory response.

Should

By

as used in any ANSI Z136.x document the word is to be understood as implementing an advisory response.

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