Test Standard-ASTM e466 Sodium Carboxymethylcellulose

ASTM E466 is a standard test method that provides a procedure for determining the viscosity of sodium carboxymethylcellulose (CMC) in water or other solvents. This method is commonly used to measure the degree of polymerization and the level of substitution of CMC, as well as to ensure the consistency of CMC samples for quality control purposes.

The test method involves preparing a solution of CMC in water or another suitable solvent and measuring its viscosity using a viscometer. The viscosity is measured at a specific temperature and shear rate, which are specified in the standard. The standard also provides guidelines for preparing the CMC solution, as well as instructions for calibrating and operating the viscometer.

In addition to measuring viscosity, the ASTM E466 standard also includes procedures for measuring other properties of CMC, such as pH, ash content, and moisture content. These properties can affect the performance of CMC in various applications, and it is important to ensure that they meet the required specifications.

Overall, the ASTM E466 standard provides a standardized and reliable method for measuring the viscosity and other properties of sodium carboxymethylcellulose. This helps to ensure the consistency and quality of CMC products and enables manufacturers to meet the needs of their customers in various industries.