GB/T 7702.8-2008Test method for granular activated carbon from coal - Determination of phenol adsorption (English PDF)

Foreword

Test Method for Granular Activated Carbon from Coal" (GB/T 7702) is divided into.

- Part 1. Determination of Moisture;

- Part 2. Determination of Particle Size;

- Part 3. Determination of Hardness;

- Part 4. Determination of Packing Density;

- Part5. Determination of Absorption of Water;

- Part 6. Determination of Methylene Blue Absorption;

- Part 7. Determination of Iodine Number;

- Part 8. Determination of Phenol Absorption;

- Part 9. Determination of Ignition Temperature;

- Part 10. Determination of Service Life against Benzene and Chloroethane Vapors;

- Part 13. Determination of CCL4 Vapor Absorption;

- Part14. Determination of Sulphur Capacity;

- Part 15. Determination of Ash Content;

- Part 16. Determination of pH Value;

- Part 17. Determination of Floatation Ratio;

- Part 18. Determination of Caramel Absorption;

- Part 19. Determination of Carbon Tetrachloride (CCl4) Desorption;

- Part 20. Determination of Pore Volume and Specific Surface Area.

This Part is Part 8 of GB/T 7702.

This Part replaces GB/T 7702.8-1997 "Standard Test Method for Phenol Adsorption of Granular Activated Carbon from Coal - Determination of Phenol Absorption".

Compared with GB/T 7702.8-1997, the main changes of this Part are as follows.

a) Specify the requirements of water for laboratory use;

b) Specify the grade and specification of filter paper for analysis;

c) Add the refining method for phenol;

d) Specify the specimen weighing range. Increase the weighing accuracy;

e) Add Chapter 3 - "Terms and Definitions".

1 Scope

This Part specifies the principle, procedures, result calculation and other related contents for determination of phenol adsorption of granular activated carbon from coal.

This Part is applicable to determination of phenol adsorption of granular activated carbon from coal. It is also applicable to powdery activated carbon from coal.

2 Normative References

The following standards contain provisions which, through reference in this text, constitute provisions of this Part of GB/T 7702. For dated reference, the subsequent amendments (excluding correction) or revisions of these publications do not apply.

However, the parties who enter into agreement based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.

GB/T 601-2002 Chemical Reagent - Preparations of Standard Volumetric Solutions

GB/T 622 Chemical Reagent - Hydrochloric Acid (GB/T 622-2006, ISO 6353-2:1983, NEQ)

GB/T 649 Chemical Reagent - Potassium Bromide

GB/T 650 Chemical Reagents - Potassium Bromate (GB/T 650-1993, neq ISO 6353-3:1987 R75)

GB/T 1272 Chemical Reagent - Potassium Iodide (GB/T 1272-2007, ISO Where, c - The concentration of sodium thiosulfate standard titration solution, in mol/L;

V1 - The volume of sodium thiosulfate standard titration solution consumed by specimen titration, in mL;

V2 - The volume of sodium thiosulfate standard titration solution consumed by titration in blank test, in mL;

M - The molar mass of phenol [M(1/6C6H5OH)=15.68 g/mol], in g/mol; m - The mass of specimen, in g.

10 Precision

Parallel determination shall be carried out for each test sample by using 2 portions of specimens. The difference of 2 determination results, expressed by arithmetic mean, shall not be more than 2% (2% of the mean value). The calculation results shall be rounded off to integer.

11 Test Report

The test report shall include the following contents.

a) Serial number of the sample;

b) The standards used;

c) The methods used;

d) Test items;

e) Test results;

f) Testing personnel;

g) Date of test. […]