Method Result of my SN testing strip. Please suggest if I can go with this SN.

[randomsomeonein]

Hi,
I just followed the instructions in the below link to test my SN.

Testing my SN using the aquarium testing strips

I received the 2nd SN bottle today, because I ordered SN from 2 different sellers. So, this is the second time testing the SN using the aquarium testing strips, and decided to document and share the test results this time. I understand that the test is not highly accurate. But, I'm satisfied...

sanctioned-suicide.net

Now I dont understand what the result mean? Can someone check the image and tell me what it means? Is the SN good for CBT?


Result reading closer to 10


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NOTE: I did exactly what the instructions were to test the SN. I had all the tools to measure everything properly.

 

[tinyghost]

you have made a concentration that, should the sn be 100% pure, come to 10mg sn to 1l of water. since your strip is reading at between a 5 and 10 it may be a a bit deteriorated. did you open the sn before today? what % is it labeled as? im no expert here so anyone else feel free to chime in.

 

[flakeyknight]

Does the brand of test strips matter? I heard API is actually a bad brand from an aquarium enthusiast on Quora

 

[Birdola]

you have made a concentration that, should the sn be 100% pure, come to 10mg sn to 1l of water. since your strip is reading at between a 5 and 10 it may be a a bit deteriorated. did you open the sn before today? what % is it labeled as? im no expert here so anyone else feel free to chime in.

I also think the color is too light to be pure, but only my opinion.