GB/T 21059-2007 "Plastics - polymers/resins in the liquid state or as emulsions or dispersions - Determination of viscosity using a rotational viscometer with defined shear rate"

The GB/T 21059-2007 standard specifies a method for measuring the viscosity of polymers/Resins in liquid, emulsion or dispersion systems at specified shear rates using a swirl/spin Viscosity meter. The standard is suitable for viscosity measurement of various plastic materials. This method can effectively evaluate the rheological properties of materials and provide support for plastic processing and quality control.

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