GB/T 5195.9-2016Fluorspar - Determination of loss on ignition - Gravimetric method (English PDF)

1 Scope

This part of GB/T 5195 specifies the gravimetric determination of the ignition reduction.

This part is applicable to the determination of burning loss in fluorite, the determination range (mass fraction). 0.050% ~ 5.00%.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article

Pieces. For undated references, the latest edition (including all modifications) applies to this document.

GB/T 6379.1 Accuracy of measurement methods and results (accuracy and precision) - Part 1. General and definitions

GB/T 6379.2 Accuracy of measurement methods and results (accuracy and precision) - Part 2. Determination of standard measurement methods

The basic method of sex and reproducibility

Representation and Judgment of Numerical Correction Rule and Limit Value of GB/T 8170

GB/T 22564 fluorite sampling and sample preparation

3 principle

The sample was calcined at 800 ° C to 810 ° C until constant, and the amount of ignition was calculated based on the mass loss.

4 instruments

5 samples

The samples were prepared according to the requirements of GB/T 22564, the particle size was less than 150µm, and dried at 105 °C ± 2 °C for 2h,

Room temperature.

6 Analysis steps