Active Clay Testing

[@mdrustam6237]

Very very thankful to you sir for helping foundry person
👍👍

[@ajitpatil3959]

Sir, What is 10 in formula

[@tigerkolhapuri6746]

You cannot determine active clay percentage by formula, it's totally vague process. For accurate reading you must go with graphical.
And you must know it.

[@shubham2132]

Which method is best for accurate results.