Commercially the catecheu (Kattha) is valued on the basis of taste, its texture, paste value(10-12 time) and smell and should pass the most strict PFA laws. however detailed test reports of renound Shri Ram Institute for Industrial Research of a typical sample is attached below.
Shri Ram Institute for Industrial Research Test Certificate
Shri Ram Institute for Industrial Research Test Certificate" vspace="5" hspace="5">