How does one test SN?

[vincent1]

I finally managed to get a kilo of SN but it all seems a bit too good to be true so I want to test it. How do I go about testing it in Europe?
Thank you in advance

 

[EG1141]

You can order a SN test kit online! https://www.exitinternational.net/product/nitrite-test-kit/ This specific kit does not come with the test strips, but contains a link to some :)

 

[Relic]

And you could use this guide, it's quite detailed.

SN aquarium purity testing

This is based on @jake3d 's write up, but aims to get results around the *middle* of the test range. When we get results at the edge of the range, eg the max, it may leave us questioning the accuracy, eg was the true value higher than the max (eg due to a mistake with the test method), but can't...

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