glass or aliminum?

[pancakes]

got a choice between these two bottles with the same HDPE dropper tip for my test fluid. HDPE is the same plastic as used in the EZ-test dropper tip right?

 

[aj]

I wouldn't know what kind of plastic is is exactly. I can only assure you that it is hard to find.... And I would not put the reagent in aluminium if I were you ...
aj

 

[Chemical Generation]

Use glass. HDPE is fine for short term storage. Since when was a high volume commodity plastic dripper tip hard to find?
B.
Chemical Generation