CSA safety standard on Rx...

[jonah]

Does anyone know if Rx lenses for Safety eyewear need to be stamped "CSA approved"? or do they just need to meet the requirements such as impact resistance, 2mm minimum thickness etc.
I know frames are stamped CSA approved, but Rx lenses too??????

[Fezz]

I am pretty dopey. What does CSA mean or stand for?

[jonah]

Canadian Standards Association.
it is an internationally recognized association for standards on safety etc.
http://www.csagroup.org/us/en/home

[rbaker]

Has no standing in the US for industrial safety lenses. We bow down before the OSHA and Z-87 whatever Gods.

[uncut]

Does anyone know if Rx lenses for Safety eyewear need to be stamped "CSA approved"? or do they just need to meet the requirements such as impact resistance, 2mm minimum thickness etc.
I know frames are stamped CSA approved, but Rx lenses too??????

The lenses have to be stamped with a laboratory engraving/crimp and be of industrial strength, not general public safety strength and/or thickness. The stamp is a mark that the lenses have met the industrial strength test standard of the Canadian Standards Association, and therefore the laws of safety eye wear production in Canada.

[Rob Brown]

Does anyone know if Rx lenses for Safety eyewear need to be stamped "CSA approved"? or do they just need to meet the requirements such as impact resistance, 2mm minimum thickness etc.
I know frames are stamped CSA approved, but Rx lenses too??????

The CSA requirements for RX safety eyewear are only valid in Canada. In short, the frame must bear either 'CSA Z94.3' or 'Z87' mark on both temples and back of bridge. Although Z87 is ANSI (American Standard), it is recognized and valid within Canada. Frames must also have permanently attached side shields in Canada, but seldom don't due to wearer tampering and the fact the frame vendors allow us to purchase them with side shields in a bag on the side.

As for lenses, only 3 materials are approved for safety:

Plastic 1.498 CR39 - minimum edge thickness 3mm
Polycarbonate 1.59 - minimum edge thickness 2.0mm
Trivex 1.53 - minimum edge thickness 2.5mm

The lenses must also bear the manufacturing lab's safety logo (or mark) etched on top temporal corner of each lens.

[jonah]

Do you happen to know where I can find this info documented?

[jonah]

The lenses have to be stamped with a laboratory engraving/crimp and be of industrial strength, not general public safety strength and/or thickness. The stamp is a mark that the lenses have met the industrial strength test standard of the Canadian Standards Association, and therefore the laws of safety eye wear production in Canada.

Sorry.

Uncut- Do you know where I can find this info documented?

[uncut]

Sorry.

Uncut- Do you know where I can find this info documented?

Here is a link to a source;

http://www.ccohs.ca/oshanswers/preve...e/glasses.html

This is a link to the Canadian Centre for Occupational Health and Safety.....Q/A page.

[jonah]

Thank you!

[edKENdance]

FWIW your lab should have the CSA data pertaining to thickness tolerances as well as engravings.

[jonah]

Here is a link to a source;

http://www.ccohs.ca/oshanswers/preve...e/glasses.html

This is a link to the Canadian Centre for Occupational Health and Safety.....Q/A page.

Do you know which stamp or engraving is used?

[edKENdance]

Do you know which stamp or engraving is used?

I believe that all engravings are lab specific.

[Oscar]

Do you know which stamp or engraving is used?

you probably won't get a stamp on an uncut. It's usually applied after edging.