VISOCOLOR® HE Acidity AC 7 • Titrimetric determination of acidity (base capacity) • Titrimetric determination of acids with sodium hydroxide solution against the p indicator. • Type: high sensitive titration test kit • Range: 1 syringe last for the determination of 0.2 – 7 mmol/l H+, 1 gradation mark = 0.2 mmol/l H+ • Sufficient for: 200 tests with an average acid content of 4 mmol/l H+ • Shelf life at least: 2 years • Sea water suitability: yes • Detectable with PF-11: no • In natural unpolluted waters mainly carbonic acid is present, but also humic acids. • With this test kit all acids, i. e. also those present in industrial waters, can be determined.