3/40B Chlorine Disc (4.0mg/l)

• Easy to use, visual assessment of the sample – simply rotate disc for colour match
• Manufactured for longevity of use
• Optional lighting units for guaranteed lighting conditions 24 hours a day
• Optional Nessleriser systems for longer path lengths

Disc Parameter Reading
0.19, 0.38, 0.57, 0.76, 0.95, 1.14, 1.33, 1.52, 1.9