40 Important Laboratory Tests in Sanitaryware Manufacturing

Various tests are being carried out by the laboratory in a sanitary ware production process to ensure the Quality of the Final product. And testing starts from raw material discharge area up to Dispatch. This test are very important to keep the rejection rate low in production as most the problem can be found at the initial stage and eliminated immediately.  Below is a comprehensive list of tests performed in the sanitary ware lab to ensure product quality.

1. Clay test (Plastic materials)
   1. Moisture content in clay
   2. Alkali demand test
   3. Residue test
   4. Shrinkage test
   5. Loss of ignition test(LOI)
   6. Water absorption
   7. Casting rate
   8. MOR
   9. Iron test
2. Quartz /Feldspar test (Non-plastic materials)
   1. Residue test
   2. Iron test
   3. Moisture test
   4. Cone test
3. Glaze test
   1. Fired glaze color test
   2. Residue test
   3. Iron test
4. Slip test
   1. Density/Specific Gravity
   2. Flow
   3. Thixotropy
   4. Residue test
   5. Shrinkage test
   6. Warpage
   7. MOR
   8. Permeability test
5. Glaze test
   1. Density/Specific Gravity Viscosity Drying time Flow test Color matching Residue test PSD test

Plaster of Paris test

1. Residue test
2. Initial and final setting time
3. MOR
4. Exothermic temperature measurement
5. Absorption percentage

Fired ware test

1. Water absorption test
2. Crazing test
3. Thermal shock resistance
4. Citric/ Chemical resistance test

The aforementioned tests are standard tests in laboratories within the Sanitaryware Industry. SOP is created for every Test to ensure the test are carried by proper procedure.

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