RBS® pF-universal cleaner concentrate, liquid, pH basic, 1 l, plasticRBS pF universal cleaner concentrate, liquid, pH basic, Density (D) 1,07 g cm, UN Nr. 1824 Alkaline liquid laboratory cleaning concentrate for manual or automatic cleaning in analytical labs. Equalises water hardness. Rinses off trace free. Phosphate free pH value in concentration for use 2%: approx. 11. 8 Density 1. 072 g ml Slightly foaming Also suitable for use with hard water Biodegradable Concentration for use: 20 ml per litre of water; increase