255 Burettes with Straight Bore PTFE (Teflon) Key Stopcock "PSAW " Accuracy as per Class "A" of I.S. 1997; 1967 with Works Certificate 255/01 Cap. 1 ml., Sub-Div 0.01 ml., Tolerance 0.006 ± ml. 255/02 Cap. 2 ml., Sub-Div 0.02 ml., Tolerance 0.010 ± ml. 255/03 Cap. 5 ml., Sub-Div 0.02 ml., Tolerance 0.010 ± ml. 255/04 Cap. 10 ml., Sub-Div 0.05 ml., Tolerance 0.020 ± ml. 255/05 Cap. 25 ml., Sub-Div 0.05 ml., Tolerance 0.050 ± ml. 255/06 Cap. 50 ml., Sub-Div 0.10 ml., Tolerance 0.050 ± ml. 255/07 Cap. 100 ml., Sub-Div 0.20 ml., Tolerance 0.100 ± ml. (Burettes 1 to 10 ml. With Cup top)