Johnson Indicator Papers, Humidity (CoCl₂ Free), Pack 200

Cobalt chloride free humidity indicator paper does not contain carcinogenic or toxic material. There is a clear colour change from yellow-green to pale to colourless at approximately 2% Humidity indicator paper traditionally contains cobalt chloride which is known for it’s toxic and carcinogenic properties Handling these indicator papers puts end users and those involved with packing them at risk This non-toxic moisture indicator paper disqualifies this risk being safer to use