Product name	Tech. grade boric acid(super class)	Quantity	200MT
Date of manufacture		Report date
Inspection standard	GB/T538-90	Lot number
Parameters		Index value	Measured value
H3BO3%>=		99.6-100.8	100.1-100.3
water insouble matter%<=		0.01	0.005
sulfate(SO4)%<=		0.1	0.1
chloride(Cl)%<=		0.05	0.08
Fe%<=		0.002	0.0014
Remark
Result：this lot conform with GB/T538-90 tech. Grade super class standard