ชุดทดสอบความกระด้าง Tube Test (1.0 – 20,0 °d)

NANOCOLOR® Hardness 20

Photometric determination of total hardness (Calcium + Magnesium)

Photometric determination of total hardness with phthalein purple
With the aid of a selective masking agent differenciation between calcium and magnesium is possible.

Data and ordering information

Cat. No. 985 043
Type tube test 0-43
Range 1.0 – 20,0 °d
0.2 – 3.6 mmol/l
5 – 50 mg/l Mg2+
10 – 100 mg/l Ca2+
Sufficient for 20 determinations
Shelf life at least 18 months
Sea water suitability yes, after dilution (1:30)