Estimation of iodine in table salt

hi to all

how to calculate iodine content in table salt (which is a iodized salt)
as per our PFA norms the standard iodine content in salt is NLT 30ppm.
i want to check the salt wat we are using in our unit.
is there any simple titrimetric method?

Apparently yes. Google.

http://hatnim.co.kr/...a/titration.pdf

Only item missing seems to be the actual calc. for iodine. Hope you can do that ?

Note the very low thio concentration required. Blanks probably important.

Rgds / Charles.C