RalphLambrecht
Subscriber
I bought a cheap Hanna pH meter and hope to use it for the pool and some darkroom work, such as checking developer pH;I have two questions:
1.Can I calibrate it mixing 5g of Borax in 1 liter of water and assume this to be at pH9.2?
2.In the past I've stored the tip in a strong solution of KCl potassium chloride but the crystals 'grew' all over the meter and the container, making a mess and I lost valuable chemicals.Would a strong solution of Na Cl achieve the same purpose without making the mess?
1.Can I calibrate it mixing 5g of Borax in 1 liter of water and assume this to be at pH9.2?
2.In the past I've stored the tip in a strong solution of KCl potassium chloride but the crystals 'grew' all over the meter and the container, making a mess and I lost valuable chemicals.Would a strong solution of Na Cl achieve the same purpose without making the mess?