ANSI Z American National Standard for Safe Use of Lasers and the history of lasers and laser classes. ANSI Z and Z Combination Set. Safe Use of Lasers and Testing and Labeling of Laser Protective Equipment (Historical Package). ANSI Z and. ANSI Z American National Standard for Safe Use of Lasers Z 1 provides guidance for the safe use of lasers and laser systems by defining.

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Available for Subscriptions Available in Packages Standard is included in: Similarly Class 2M applies to visible lasers which are safe when viewed asi the unaided eye for up to 0. Currently few differences exist between the two standards.

Guidance is also offered in the use of laser eyewear in conjunction with ultrashort pulses. For pulses shorter than 10 —9 seconds, the guidance was to employ the MPE for 1 anai.

A practical means for accomplishing this is to 1 classify lasers and laser systems according to their relative hazards and to 2 specify appropriate controls for each classification. Need more than one copy?

This clearly produced a conservative approach to the hazard evaluation for such sources. The new standard also facilitates the methodology of dealing with small and extended sources.

Three new classes of lasers are being created 1M, 2M and 3R.

ANSI Z – American National Standard for Safe Use of Lasers

The Control Measures section of the new standard specifically treats safety issues associated with laser pointers, and provides guidance for the safe use of these products.


All current Class 1 lasers will become Class 1 and Class 1M. Once adopted by ANSI, corresponding changes will be have to be made in the Control Measures and Measurement sections to account for the added requirements. We have no amendments or corrections for this standard.

The ANSI Z specifies sign dimension, lettering size, color, and other important sign design elements. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. If the document is revised or amended, you will be notified by email.

Already Subscribed to this document. Flashblindness, afterimage, and glare can occur as a result of exposure to laser pointers and may result in visual dysfunction that can affect visual-critical activity such as driving or flying.

With advances in laser device technology driving new designs, the new laser pointers generally contain a diode laser that is classified as Class 3a. The wnsi of these changes are relatively small.

Most current Class 2 will remain Class 2 or will become 2M if they possess a highly divergent beam. The Class 1 category is therefore significantly expanded for those lasers.

The IEC recognizes that their current classification scheme is problematic particularly as it relates to evaluations with and without optically aided viewing. This standard is also available in these packages:.

This standard is also available to be included in Standards Subscriptions. The new hazard signs contain an equilateral triangle attention symbol in addition to the familiar sunburst pattern. This would allow users to better prepare for eventual adoption of these changes. Please first verify your email before subscribing to alerts. You may delete a document from your Alert Profile at any time. The biological data thus produced provides the basis for extending the formalism and hazard limits into new parameter space.


The most important changes contained in the newly revised standard are described znsi. This should be contrasted with previous generations of laser pointers that were based on HeNe lasers and were generally classified as Class 2.

Class 3R for reduced requirements is for laser products that are marginally safe for intrabeam viewing. As the voice of the U.

New Revision of ANSI Z136.1 (Laser Safety Standards)

The new standard revises the tables containing MPEs, and methods by which hazard evaluation and laser classifications are done for ocular exposure of small intrabeam viewing and extended source viewing.

In general, the guidance based upon the new data is less stringent than the corresponding guidance in the previous version asni the standard. Your Alert Profile lists the documents that will be monitored.