http://itrademarket.com/trade/Sumatera_Utara/Indonesia/Chemicals/Inorganic_-_Inorganic_Acid/0.htmlItrademarket.com - International Import Export Trade Leads MarketplaceenTue, 18 Nov 2008 08:02:03 -0700Itrademarket.comPRODUCT SPECIFICATION Standard GB/T6009-2003 Date 2006-03-02 Index Quality Standard I sort one class Analysis result Sodium sulphateNa2So4 %g 99.0 99.1 Water-indissoluble %f 0.05 0.02 Calcium....http://AsahanAgro.itrademarket.com/1010933/sodium-sulphate.htmCV Asahan Agro2008-10-10 23:31:47