Limiting Broken Glass in the Lab

Play it safe and throw the item away. Although this option may seem 

Examine the glass with a polariscope to look for strain. If no strain is 

If strain in the glassware is evident, or if you cannot verify whether 

Of the three options, the second and third are limited by available equipment. Without a polariscope and/or glass annealing oven, you cannot do them. If you do not have this equipment, play it safe and use the first option. 

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