FOR PHYSICOCHEMICAL PA­RAM­E­TERS

Consumer Voice - - Comparative Test -

Fine­ness | Heavy Me­tals | Mat­ter In­sol­u­ble in Boil­ing Wa­ter | Mois­ture and Volatile Mat­ter | For­eign Par­ti­cles | As­bestine | Sol­u­bil­ity of Colour | pH

Fine­ness

As per In­dian Stan­dard, the residue of pow­der should not be more than two per cent by mass when passed through a sieve of 75 mi­crons. It should not be more than 0.5 per cent by mass when passed through a sieve of 150 mi­crons.

of per­for­mance on this pa­ram­e­ter, Spinz is fol­lowed by Pre­mium. The ‘fine­ness’ pa­ram­e­ter is im­por­tant be­cause tal­cum pow­der is used di­rectly on the skin and some­times on del­i­cate or sen­si­tive ar­eas of the body. It is also meant to add to phys­i­cal com­fort level.

Heavy Me­tals

Tests were car­ried out to check for the pres­ence of ar­senic and lead. Ar­senic in tal­cum pow­der may cause harm­ful health ef­fects. As per In­dian Stan­dard, ar­senic shall not be more than 2 ppm in tal­cum pow­der. As for lead, it shall not be more than 20 ppm.

Mat­ter In­sol­u­ble in Boil­ing Wa­ter (% by mass)

As per the In­dian Stan­dard, mat­ter in­sol­u­ble in boil­ing wa­ter should be a min­i­mum 90 per cent by mass. It is a very im­por­tant pa­ram­e­ter to de­ter­mine the qual­ity of tal­cum pow­der.

Mois­ture and Volatile Mat­ter

It shall be not more than two per cent by mass.

For­eign Par­ti­cles

On vis­ual ex­am­i­na­tion, the tal­cum pow­der should be free from for­eign par­ti­cles.

As­bestine

All the brands were sub­jected to mi­cro­scopic ex­am­i­na­tion for pos­si­ble pres­ence of as­bestine, a min­eral com­pound known for its neg­a­tive im­pact on hu­man health.

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