论文部分内容阅读
一、护发素①PH值法。按1:9比例溶于未曾在空气里暴露半小时以上的温开水或蒸馏水中,所形成的溶液,如果使用精密PH试纸,(测试范围2.0—8.0之间)在2.5～7.0之间显色,则为正品。②高温法。在39～41℃环境里存放24小时后恢复室温时如出现分离、沉淀、变色现象则为劣质品(含有不溶性粉粒沉淀除外)。③低温法。在—5～—15℃环境里存放24小时,恢复室温后如出现不能还原现象则为劣质品。二、唇膏①外观。正品应表面光泽,平滑无气孔。②高温法。在44～46℃环境里,24小时之后应无
First, the hair conditioner ① PH value method. 1: 9 ratio dissolved in warm air or distilled water has not been exposed to the air more than half an hour, the resulting solution, if the use of precision PH test strips (test range 2.0-8.0) between 2.5 to 7.0 color , Then genuine. ② high temperature method. In 39 ~ 41 ℃ environment for 24 hours after the return of room temperature, such as separation, precipitation, discoloration is inferior products (containing insoluble particles precipitation excluded). ③ low temperature method. Store in -5 ~ -15 ℃ environment for 24 hours, restore the room temperature, such as can not be reduced if the phenomenon is inferior. Second, the appearance of the lipstick ①. Genuine should be shiny, smooth pores. ② high temperature method. In 44 ~ 46 ℃ environment, there should be no 24 hours later