... :4.0-4.84.0-4.8Remark :Conformed with FCC V and E 223 Standard Quality IndexPharmaceutical GradePhoto GradePurity ( As Na2S2O5)98 ... , cake, bamboo shoots, etc); Loose agent (e.g. bread, cracker etc); Antiseptic and germicide (e.g. fruit juice, tinned food, brews, the ... cereals food is defended storage etc); Inhibitor and freshen agent (e.g. day lily, seafood, fruit and vegetable etc).(2) Industry ...