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TEL：0086-27-82288353
+86-13971029269
FAX：0086-27-82288295
Email: whcz_78@163.net
ADD.: Rm 1013,BLDG 3,Area C,Hankou City Plaza,Houhu Avenue,Wuhan
地址：武汉市江岸区后湖大道汉口城市广场C区3号楼1013
网址：www.zoyochem.com
| ITEM | STANDARD |
| Appearance | A fine white or almost white odorless powder |
| Particle size | 98% pass 120 mesh |
| Assay (as α- cellulose, dry basis) | >=97% |
| Water-soluble matter | =< 0.24% |
| Sulphated ash | =< 0.5% |
| pH (10% solution) | 5.0- 7.5 |
| Loss on drying | =< 7% |
| Starch | Negative |
| Carboxyl groups | =< 1% |
| Lead | =< 5 mg/ kg |
| Arsenic | =< 3 mg/ kg |
| Mercury | =< 1 mg/ kg |
| Cadmium | =< 1 mg/ kg |
| Heavy metals (as Pb) | =< 10 mg/ kg |
| Total plate count | =< 1000 cfu/g |
| Yeast and mould | =< 100 cfu/g |
| E. coli/ 5g | Negative |
| Salmonella/ 10g | Negative |
