This flow chart steps you through the decision making process to assist determining what glass is required in common situations. It should be used in conjunction with a copy of the actual Standard.

You can download the complete chart and tables in PDF format by clicking here. (167kb) 

The flow chart is very useful as a  reference file on portable devices and computers. 

Use your PDF reader tools to enlarge various sections clearly. 

The flowchart is formatted to print out on A4 or A3 printers and will fit onto one page printed both sides.

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