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YS/T 581.2-2006Determination of chemical contents and physical properties of aluminium fluoride. Part 2: Determination of ignition loss (English PDF)

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Issued by

National Development and Reform Commission

Level / Type

National · Recommended

Issue date

March 7, 2006

Implementation date

August 1, 2006

Scope

YS/T 581.2-2006 (Determination of chemical contents and physical properties of aluminium fluoride. Part 2: Determination of ignition loss) is available as an English-translated PDF.

YS/T 581.2-2006 — This Part specifies the determination method for ignition loss of aluminium fluoride. This Part applies to the determination of ignition loss of aluminium fluoride. Determination range: 0.20%~8.00%.

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Document preview — YS/T 581.2-2006

National Standard of the People's Republic of China

ICS: 71.100.10
Classification: H 21

Issued by: National Development and Reform Commission

Foreword...3
1 Scope...5

Foreword

YS/T 581 "Determination of chemical contents and physical properties of

aluminium fluoride" is divided into 15 parts:

- Part 1: Determination of moisture content by gravimetric method

- Part 2: Determination of ignition loss

- Part 3: Determination of fluoride content distillation-thorium nitrate titration

volumetric method

- Part 4: Determination of aluminium by the EDTA volumetric method

- Part 5: Determination of sodium by flame atomic absorption spectrometric

method

- Part 6: Determination of silica content by the molybdenum blue photometric

- Part 7: Determination of iron content by orthophenanthroline photometric

method

- Part 8: Determination of sulphate content by barium sulphate gravimetric

method

- Part 9: Determination of phosphorous content by molybdophoshoric lieu

photometric method

- Part 10: Determination of sulphur content by X-ray fluorescence

spectrometric method

- Part 11: Preparation and storage of test samples

- Part 12: Determination of size distribution - Sieving method

- Part 13: Measurement of the angle of repose

- Part 14: Determination of untamped density

- Part 15: Free alumina content

This Part is Part 2.

This Part was proposed by and shall be under the jurisdiction of National

Technical Committee 243 on Nonferrous Metals of Standardization

Administration of China.

Fushun Aluminium Factory and China Nonferrous Metals Industry Standard and

Determination of chemical contents and physical

properties of aluminium fluoride - Part 2:

Determination of ignition loss

1 Scope

This Part specifies the determination method for ignition loss of aluminium

fluoride.

This Part applies to the determination of ignition loss of aluminium fluoride.

Determination range: 0.20%~8.00%.

2 Method principle

The test portion is burned at 550°C±5°C for 30 min. From the difference

between the mass of the test portion before and after burning, calculate the

ignition loss.

3 Instruments and equipment

3.1 High-temperature furnace: The temperature can be controlled at

550°C±5°C.

3.2 Platinum crucible: Diameter is 30 mm; height is 40 mm; with lid.

4 Test samples

It shall meet the requirements of 3.2 in YS/T 581.11.

5 Analytical procedure

5.1 Test portion

When the ignition loss is not more than 1%, weigh 5 g of test sample (4). When

the ignition loss is more than 1%, weigh 2.5 g of test sample (4). The mass of

the test portion is recorded as m0.

5.2 Number of determinations

......

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 5 pages — is available in the English PDF.

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