Marienfeld Flask Volumetric Amber 25ml Cl.A Stop Ns 10/19 Cert, 10 MARI2333212

Superior Marienfeld 25mL Volumetric Flasks with Ground Joint, Amber Glass, Class A with Batch Certificate Volume: 25mL Neck: NS 10/19 Tolerance: ± 0,040 ml Graduation: White Pack Size: 10 items Class A conformity certified with batch certificate. Conformity means compliance with the German Calibration Regulations and the relevant standards. Imprinted with the conformity symbol ”DE-M” along with the year. A batch certificate of conformity is supplied together with every box. On request individual certificates of conformity are available. made of borosilicate glass 3.3 (dyed brown) in compliance with DIN EN ISO 1042 very good chemical resistance minimal thermal expansion high resistance to thermal shocks autoclavable calibrated ”In” (to contain)+Q12 with 1 circular mark printed with fused-on enamel colour resistant against most acid and alkaline solutions supplied with NS poly stopper