GB/T 2 2459.6 - 2008 is the sixth part of the refractory slurry standard, focusing on the water content testing of pre-stirred slurries. It specifies the test equipment, sample prepative, operation process and result calculation method in detail. By accurately measuring the water content of pre-stirred slurries, its mass can be effectively controlled, because the water content directly affects the construction performance and refractory effect of slurries. The standard provides standardized methods for production enterprises and related testing institutions to help ensure that refractory slurries can play a stable role in bonding and sealing in high temperature industrial applications, and ensure the mass construction and safe operation of industrial kilns and other facilities.