Testing SN with only 5ppm test tubes?

[BornBrief]

If anyone could do the math for me for test tubes that read up to 5ppm for nitrites that would be incredibly appreciated. My brain does not handle math very well and I don't have the ability to concentrate on something very well these days it feels like.

Hopefully the test tubes are okay, I have a small shrimp jar that I've been cultivating for a while so this is something I've had for a while now and would be easier to not get the strips.


Thanks :)

 

[lanax09]

ppm means parts per million; so you'll at least know whether there's sodium nitrite in the thing but it won't do anything to indicate whether it's of a suitable purity

 

[0siris]

What do you mean with test tubes?

You have a test with reagents?

 

[dark_angel]

What do you mean with test tubes?

You have a test with reagents?

What is reagents ? I saw that on a description of SN once