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เอกสารมาตรฐาน
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ASTM
C650-20
Standard Test Method for Determination of Resistance to Chemical Substances
2020
3
ASTM Vol.15.02 (2022)
This test method covers a procedure for determining whether, and to what degree, ceramic tiles and glass tiles are affected by prolonged exposure to chemical substances that are commonly used in the household or for cleaning purposes as well as other more severe conditions.
The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
The units used for concentration in this standard are v/v, which refers to the volume of reagent/1 L of solution, and g/L, which refers to the weight of reagent, in g, to be dissolved in 1 L of water.