純的羥丙基甲基纖維素HPMC目視狀況疏松，堆積密度較小，規(guī)模是：0.3–0.4/ml;摻假的HPMC流動(dòng)性非常好，手感愈加沉，與正品外觀存在顯著區(qū)別。

Hydroxypropyl methylcellulose HPMC pure state visually fluffy small bulk density, the range :0.3 – 0 .4/ml; adulteration HPMC better mobility, feel more heavy, there are obvious differences in the appearance of the genuine.

純的羥丙基甲基纖維素HPMC水溶液弄清、透光率高，保水率>97%;摻假的HPMC水溶液較污濁，保水率很難到達(dá)80%。

Pure aqueous solution of hydroxypropyl methyl cellulose HPMC clarification, high transmittance, water retention rate> 97%; HPMC solution adulteration more turbid water retention rate of 80% is difficult to achieve.

純的羥丙基甲基纖維素HPMC不應(yīng)該聞到氨氣、淀粉和醇類的滋味;摻假的HPMC通常能夠聞到各類滋味，即便無味，也會(huì)手感較沉。

Pure hydroxypropyl methyl cellulose HPMC should not smell ammonia, starch and alcohol taste; adulterated HPMC often can smell all kinds of taste, even tasteless will feel heavy.

純的羥丙基甲基纖維素HPMC粉末在顯微鏡或放大鏡下是纖維狀;摻假的HPMC在顯微鏡或放大鏡下能夠觀察到顆粒狀固體或晶體。

Hydroxypropyl methylcellulose HPMC pure powder under a microscope or magnifying glass is a fibrous; HPMC adulterated under a microscope or magnifying glass to observe the particulate solid or crystals.