AS 4459.10-1999 (R2017) pdf free.Methods Of Sampling And Testing Ceramic Tiles – Method10:Determination Of Moisture Expansion.
1 Scope
This part of ISO 10545 specifies a method for determining the moisture expansion of ceramic tiles.
2 Definition
For the purposes of this part of ISO 10545, the following definition applies.
2.1 Moisture expansion: Proportional accelerated expansion that results from subjecting reheated tiles to extended immersion in boiling water.
3 Principle
Determination of accelerated moisture expansion by subjecting a reheated tile to boiling water and measuring the proportional change in length.
4 Apparatus
4.1 A suitable type of measuring frame, fitted with
a micrometer, dial gauge, transducer or similar device,
with an accuracy of at least 0,01 mm.
4.2 Reference bars of nickel steel (Invar), of approximately the same length as the test specimens, fitted with an insulated grip.
4.3 Kiln, capable of firing up to 600 °C at a rate of temperature rise of 150 °C/h and with a control over the temperature of ± 15 °C.
4.4 Vernier calilpers, or other suitable apparatus for linear measurement to the nearest 0,5 mm.