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Contact Person Mr. Alexander
west bridge, shijiazhuang, Hebei
Item Index B**1 B**2 B**1 Top grade First grade Qualified products Top grade First grade Qualified products Top grade First grade Qualified products Sumtotal of zinc(base on zinc sulfate and barium sulfate %(m/m)⥠*9 *9 *9 Total zinc amount(base on zinc sulfate)%(m/m)⥠*8 *8 *0 Zinc oxide, %(m/m) ⤠0.6 0.8 1 0.3 0.3 0.5 0.3 0.3 0.5 **5°C volatile%(m/m)⤠0.3 0.3 0.5 0.3 0.3 0.5 0.3 0.3 0.5 After Soluble in water%(m/m)⤠0.4 0.5 0.5 0.4 0.5 0.5 0.3 0.4 0.5 Residue on sieve (*3um sieve pore) %(m/m)⤠0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Color(compare with standard sample) Exc- elled Approx- imately slight poorer Exc- elled Approx- imately slight poorer Exc- elled Approx- imately slight poorer Water extraction alkaline hardness Neutral Oil absorption, g/**0g⤠*4 *1 *0 Reducing power(compare with standard sample), %⥠**5 **0 *5 **5 **0 *5 **5 **0 *5 Hiding power(contrast ratio) Not lower than 5% of standard sample
