GB/T 39527-2020Determination of calcium, aluminium and silicon in the solid surface materials—Method of chemical analysis (English PDF)

1 Scope

This standard specifies the chemical titration and inductively coupled plasma emission spectrometry to determine the content of calcium, aluminum and silicon in solid surface products:

Method principle, reagents and equipment, test methods and requirements, precision and inspection report:

This standard applies to the determination of calcium, aluminum and silicon content in solid surface products: Artificial granite and artificial stone quartz can be used as a reference: real

See Table 1 for the determination range of each element of decent surface products:

Table 1 Elements and measurement range

Element name determination range a (mass fraction)/%

Calcium (calculated as CaO) 0:51~51:45

Aluminum (as Al2O3) 0:50~48:96

Silicon (as SiO2) 0:53~90:49 a The specified measurement range represents the range studied by the precision test: Exceeding this range may also be applicable, but the laboratory is required to perform the test for the out of range:

Line verification:

2 Normative references

The following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article

Pieces: For undated references, the latest version (including all amendments) applies to this document:

GB/T 6379:1 Measurement methods and accuracy of results (accuracy and precision) Part 1: General principles and definitions

GB/T 6379:2 Accuracy of measurement methods and results (accuracy and precision) Part 2: Determine the repeatability of standard measurement methods

Basic methods of sex and reproducibility

GB/T 6682 Analytical laboratory water specifications and test methods

JC/T 908 Artificial stone

3 Terms and definitions

The terms and definitions defined in JC/T 908 apply to this document:

4 Principle of the method

The sample is melted by sodium hydroxide at high temperature to obtain a clear solution to be tested, using chemical titration or inductively coupled plasma emission spectrometry

Perform qualitative and quantitative testing of calcium, aluminum and silicon in the solution to be tested, and calculate the oxide content: