产品标准：化妆品（外用）级透明质酸钠

 性状外观：本品为白色或类白色颗粒或粉末，无味，有引湿性。在水中溶胀成澄清的溶液，在乙醇、丙酮中不溶。

质量规格

         葡萄糖醛酸                                      ≥43%

         透明质酸钠                                      ≥91%

         PH                                             6.0～7.5

         分子量                                          ≥1.0Mda

         蛋白质                                          ≤0.1

         水分（干燥失重）                                ≤10.0%

         溶液透光率                                      ≥99.0%

杂质及微生物检验

         重金属                                          ≤5ppm

         砷                                              ≤2ppm

         霉菌和酵母菌                                    ≤100cfu/g

         金黄色葡萄糖球菌                                不得检出

         铜绿假单胞菌                                    不得检出