Código Interno: PRO25211 Actualizado: 2024-02-16 Modelo: GP-2/21/20-8Calibration Gases for analyzer, gas detector and laboratory applicationsBrand: Marca: INTRIAL(made in USA)Cylinder : 30 LTR ALUMINUM (53" x 8")Gas Mix combination: 10ppm H2S (HYDROGEN SULFIDE) , 2.5% CH4 (50% LEL) in Nitrogen Balance