GB/T 22662.1-2008Chemical analysis methods of potassium fluotitanate - Part 1: Preparation and storage of test samples (English PDF)

3.1 laboratory sample

Using GB/T 6679 stipulated in laboratory sample preparation and storage methods.

3.2 original sample

For some geometric properties measured for testing certain physical and physico-chemical properties, as well as for determination of hygroscopic moisture. Take about 300g solid

Laboratory sample (3.1), which was stored in a sealed container, the container is almost full sample is appropriate.

3.3 drying specimens

Chemical tests for the determination of certain geometrical characteristics and certain physical and chemical physics test.

3.3.1 Sample grinding

The sample was milled and sieved until all of 0.125mm sieve pore size of up. Sieved sample after mixing, at 110 °C ± 5 °C

Drying 2h.

3.3.2 Equipment

3.3.2.1 test sieve

its sieve size of 0.125mm. Not tested by introducing an impurity element material, and be based on fluorine potassium titanate

Properties measured impurity element selected test sieves.

3.3.2.2 mortar

steel made of jade or agate.

3.3.2.3 electric oven

Natural convection ventilation, to control the temperature at 110 °C ± 5 °C.

3.3.3 Procedure

3.3.3.1

About 100g laboratory sample (3.1) through the test sieve (3.3.2.1), the sieve residue particles on the mortar (3.3.2.2 )

Milled and sieved again, sieved material was added to the front of the screen carefully mixing the compound. Repeated grinding, screening, mixing until all samples

All through a sieve so far.

3.3.3.2

The sample (3.3.3.1) into a platinum dish, and put into an electric oven (3.3.2.3), the control temperature of 110 °C ± 5 °C drying 2h. and

After removing the platinum dish from an electric oven, placed in the dryer to cool to room temperature.

3.3.3.3

The sample (3.3.3.2) stored in airtight containers for the storage requirements of the volume of container to be almost completely filled with sample

Appropriate.