Código Interno: PRO56791 Actualizado: 2024-03-21 GP-25ppmH2S-BalN2-AL30-0.8m3Model: GP-25ppmH2S-BalN2-AL30-0.8m3• Calibration gases for laboratory applications, gas detectors and analyzers• Brand: Brand: INTRIAL (made in the USA)• ////Gas Mix Combination: 25ppm (H2S);Balance N2 ////