Vaisala Oyj, as a manufacturer of the Vaisala MGP260 Series CARBOCAP® Multigas Probes, certifies that the materials used in the wetted parts of MGP260 probes are the following: 1 Probe body: AISI 316L, EN 1.4404 (X2CrNiMo17-12-2) (AISI 316L) 2 Sensor package window: polished sapphire 3 O-ring: ethylene-propylene rubber, black 4 Measurement cuvette: PPS GF40 (polyphenylene sulfide, 40 % glass fibers, black) 5 Infrared measurement mirror: optical borosilicate glass, class BK7 6 Filter cap: PTFE (polytetrafluoroethylene, porous/solid structure)