I. Hoc modus est idoneam determinandum dynamic viscosity non-Newtoniani fluidorum (Polymer Solutions, suspensionis, EMULSIO dispersio liquida aut surfactor solutiones, etc).
II. Instrumentis et vasa
2.1 Gyratorius VE VECEETERS (NDJ, I et NDJ-IV sunt praescripta per Seres pharmacopoeia) VE VEGETERS (ut NDJ-I et NDJ-IV), ut usus frequency stabilization mensuras superiores oportet esse pepercit. Accuracy 1% Accurately weigh 8.0g hydroxypropyl methylcellulose sample, put into dry, tared 400mL tall beaker, add about 100idL of 80-90 degrees Celsius hot water, stir 10min to make dispersion uniform, Under stirring, add cold water to a total of 400 mLo and keep stirring for about 30 minutes to make a 2% (w/w) solution, put it in the refrigerator and cool Hoc per glaciem balneum donec superficies fit tenuis glacies. XX ± 0.1 gradus ad deprehendere viscosity.
3.1 The installation and operation of the instrument shall be carried out according to the instruction manual of the instrument, and the appropriate rotor and rotating speed shall be selected according to the viscosity range of the test product and the provisions of the pharmacopoeia under the main text of the product.
3,2 adjust temperatus ad constant temperatus aqua secundum mensuram sub se pharmacum item.
3,3 Take in test sample et ponere in continens certa per instrumentum, et post constans temperatus ad XXX minutes, metimur deflexio angle (Q) secundum legem. Illuminationes motricium, sileo machina et mensura iterum, differentia inter se metiri valorem et mediocris valorem ne ultra ± III% de mediocris valorem, aliud est tertia measurement.
3,4 calculate in mediocris valorem II mensuras secundum formulam obtinere dynamic viscositas test opus.
IV. Record et calculate
4.1 recordarentur exemplar ad gyratorium Viscometer, in rotor numerus et gyratorius celeritate solebat, in VECEMETER constant (K valorem), mensurae temperatus et valorem metiri per tempus.
4.2 Calculation Formula
Dynamic Viscosity (MPA-S) Duo Gloria
Ubi K • est in VECEMETER constanti metiri cum a vexillum liquor innotescit Viscositas, a est deflectionis angulus
Post tempus: Feb, 20-2025