ASTM C324 is the established method for determining free moisture in ceramic whiteware clays. Free moisture is the water that dries out without changing the chemical constituents of the clay. This moisture measurement is useful to the manufacturer to ensure consistent raw material quality and to make ceramic processing more efficient. ASTM C324 is useful to ceramic producers, raw materials suppliers, testing laboratories, and research organizations to check the quality of materials received, batch-to-batch comparisons of clay, optimize drying operations, and to optimize production quality.
Get Certified ASTM C324 Moisture Testing for Ceramic Whiteware Clays
The high moisture content of clay has a significant effect on handling, mixing, drying, forming, and firing. ASTM C324 testing helps manufacturers control the moisture content, minimize processing variation, increase productivity, and ensure a consistent quality for ceramic whiteware.
ASTM C324 Equipment and Sample Preparation
A sample is taken that represents the container, measured for its initial mass, dried under controlled laboratory conditions, and the mass of the moisture removed is calculated based on the mass change.
| Sample Details | Ceramic whiteware clays including kaolin, ball clay, china clay, fire clay, and blended ceramic raw materials used for whiteware production. |
| Sample Preparation | Analysts collect a representative clay sample, mix thoroughly to obtain uniform moisture distribution, place the specimen in a clean moisture container, determine the initial mass, and prepare it for controlled drying. |
| Sample Configuration | Analysts test a representative moist clay specimen under controlled laboratory drying conditions until constant mass or the specified drying requirement is achieved. |
| Instrumentation | Laboratory drying oven, analytical balance, moisture dishes or weighing containers, desiccator, laboratory tongs, thermometer or temperature controller, and computerized weighing or laboratory recording system. |
