1219-2010 "Method for Determination of Viscosity of Hydroxypropyl Methyl Cellulose"

"DB13/T 1219-2010 Method for Determination of Viscosity of Hydroxypropyl Methyl Cellulose" is a local standard in Hebei Province. It specifies the method of measuring the viscosity of hydroxypropyl methylcellulose solutions using the Uchlein Viscosity meter and the swirl/spin Viscosity meter. The standard is applicable to samples with a viscosity range of 5200,000 mPa · s in a 2% aqueous solution at 20 ° C. Low viscosity samples (5100 mPa · s) use the Uchlein Viscosity meter, and high viscosity samples (100,200,000 mPa · s) use the swirl/spin Viscosity meter. The main contents include solution preparation, equipment requirements, measurement steps and result calculation. The standard provides a scientific basis for the quality control and performance evaluation of hydroxypropyl methyl cellulose, which is widely used in chemical, pharmaceutical and other industries.

This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.