Has anyone heard of a case, where a second glass was actually used?
Yes, you can find them in the SN bible by vizzy. It's highly likely you will vomit, so why not have it prepared and drink another glass. Better yet, have three glasses prepared. If you pass out because of the SN itself and not because of benzos or any other sedative, then the correct amount has been absorbed and you will not survive. Also any discomfort in the SN method is only there when conscious.
Has anyone heard of a case, where a second glass was actually used?
Yes, you can find them in the SN bible by vizzy. It's highly likely you will vomit, so why not have it prepared and drink another glass. Better yet, have three glasses prepared. If you pass out because of the SN itself and not because of benzos or any other sedative, then the correct amount has been absorbed and you will not survive. Also any discomfort in the SN method is only there where conscious.
If it's not pure enough, it cannot kill you.
I'm thinking of person in particular who posted a few times about it. It passed the blood test, and they thought that was all they needed to do. After they failed to CTB, other members who purchased their SN from the same source did the strip test, and it failed the test. If you think it's worth the risk, or if you trust your source completely, then don't bother to test it with strips.
I agree about the tests. Blood test is a decent indicator of you want some surety. But the strip test as indicated in the pph and sn bible is COMPLETELY useless, it simply highlights the presence of nitrites or nitrates and other molecules in a solution, and to some degree the concentration, but nowhere near enough the accuracy required to tell if your source is 95%+.
Also there are reasons why the blood test isn't a decent test either that can confirm said amount of purity.
However, the silver lining is that sodium nitrite is extremely cheap to produce and transport, it would literally cost more to spike it with some other salt or some other substance! No one would spike it with the intention of being scammy for more profit, if the source claims that it is of a certain purity level, it is, they wouldn't care to say otherwise and then mix it with something and not deliver on the purity level. Especially if it's a reputable seller that sells chemical reagents.
The problem you are most likely to encounter is government regulations and because of them, buying from shady places like people selling SN on the dark web specifically for this purpose. If you actually can get your hands on SN from a reputable source and it is claimed to be of a certain purity level, then you have no problem.
For example I got mine from a pretty large and reputable seller that factories and companies in my country buy from. I also requested a CoA for the batch from which it came. I live in a country with heavy industrialisation and mining that ships reagents all over the world but is also shady enough for civilians to easily get their hands on stuff like this.