N liquid form - purity and test

[Alucard]

How long do the liquid N remain its purity ?

According to the Pph, if it remains transparent and there is no "dust" that appears is that it is good, is it true ?

From how many years (or months) we have to use the test kit ?

 

[cornflowerblue]

How long do the liquid N remain its purity ?

According to the Pph, if it remains transparent and there is no "dust" that appears is that it is good, is it true ?

From how many years (or months) we have to use the test kit ?

There are many kinds of test kit so the expiration date of the kit would be specific to the one you purchase.

 

[fisil]

Don't you need send it to laboratory with some example liquid? I have seen just the exit test kit... You could try it on your own?;The liquid

 

[cornflowerblue]

Don't you need send it to laboratory with some example liquid? I have seen just the exit test kit... You could try it on your own?;The liquid

PPeH latest update has multiple options for purchasable test kits, one option to mail the sample, and a few DIY home options.

Don't you need send it to laboratory with some example liquid? I have seen just the exit test kit... You could try it on your own?;The liquid

There's also different types. Some just test for the presence of N, others test for the percentage.

 

[riverstyx]

In the PPH you can get Info on how to both order your own test kit and how you could send a sample to a lab for 100% confirmation.