calibration solution around the house?

i was just wondering if there is a calibration solution for checking ppm laying around the house and don't now it, kind of like using a nickel to check scales...+rep

Not really that I can think of.. Well distilled water is a safe 7.0, and tomato juice is usually pretty close to 4.1-4.2, but theres no point in going beyond droplet tests if you're going to calibrate like that..
I'll look into possible solutions using distilled water and common pills or something else standardized/replicable though..
There is a hole in your bucket for a diy solution though given the fact that you need a trustworthy reading to calibrate a solution to calibrate your meter..

Distilled vinegar 5% is exactly ph2.5 no matter what brand. Its what I have always used.

Vinegar isn't anymore trustworthy than tomato juice (usually 2.4-2.6), and its pH is further from our range..
The best place to ask would probably be sciencemadness.org, but don't talk about anything drug related there!

sorry, i should have been more clear...i was mainly talking about ppm..

Oh salt and distilled water then works pretty well.. 1.00g/L works out to 1000ppm and it scales.. IIRC, correlating EC to NaCl ppm in DH2O is the norm..

born2killspam said:

Vinegar isn't anymore trustworthy than tomato juice (usually 2.4-2.6), and its pH is further from our range..
The best place to ask would probably be sciencemadness.org, but don't talk about anything drug related there!

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Distilled vinegar has to be PH 2.5 by law in the UK due to stupid EU laws so it is extremely reliable, so in future check your facts.

Ok dude, well I don't live in the UK.. I do supervise titration labs etc each and every semester and see first hand results that tell me I'm not wrong..
Regardless ppl buy pH solutions for a reason.. Most meters are more precise than 0.1..

thank you all for your time...if i've forgotten anyone please tell me

born2killspam said:

Ok dude, well I don't live in the UK.. I do supervise titration labs etc each and every semester and see first hand results that tell me I'm not wrong..
Regardless ppl buy pH solutions for a reason.. Most meters are more precise than 0.1..

Click to expand...

a precision of 0.1 is not necesarry in growing cannabis. All I was saying is Uk Distilled Vinegar is good to use and costs the equivalent of $0.25 for a litre, whereas buffer 7 costs $15 for 200ml.

I'd say accuracy of 0.1 is the necessity for this task, but droplet tests can achieve that.. Ppl with probes though should be aiming for a higher standard, thats why they dropped the $$$ on the probe in the first place..
Not using the good stuff is the equivalentof buying a giant tv and not upgrading to HD..