Old SN

[Decided98]

Are there any sources of CTBs with 1+ year old SN. I can only CTB with 2+ year old sn and I wandering if it would be viable to use then

 

[Praestat_Mori]

As long as it was stored well and packed well there shouldn't be any problems. There is a very slow natural process that turns nitrite into nitrate but it's very slow. Did you open your SN before? You can do the suggested tests.

 

[dialogos]

Order testing strips to check purity. Pls don't use till your sure its still viable.

 

[Decided98]

As long as it was stored well and packed well there shouldn't be any problems. There is a very slow natural process that turns nitrite into nitrate but it's very slow. Did you open your SN before? You can do the suggested tests.

I have not opened my SN I have from IC and TIG plastic packing should be good I will test before I do it