Indicator papers, general purpose strips. Description Sulphite test Range10-500ppm Chart readings10, 50, 100,250 & 500ppm. Used in many industrial as well as laboratory applications. Includes comparison chart.
Indicator papers, general purpose strips. Description Sulphite test Range10-500ppm Chart readings10, 50, 100,250 & 500ppm. Used in many industrial as well as laboratory applications. Includes comparison chart.