Foreword

Hauptteil

1Scope

2Normative references

3Terms and definitions

4Sampling

5Methods of test

6Test report

Annex ADetermination of total copper content (normative)

A.1Principle

A.2Reagents and materials

A.3Apparatus

A.4Procedure

A.4.1Test portion

A.4.2Blank test

A.4.3Preparation of the calibration graph

A.4.3.1Preparation of standard calibration solutions

A.4.3.2Spectrometric measurements

A.4.3.3Plotting the graph

A.4.4Determination

A.4.4.1Preparation of the test solution

A.4.4.2Spectrometric measurements

A.5Expression of results

Annex BDetermination of total manganese content (normative)

B.1Principle

B.2Reagents and materials

B.3Apparatus

B.4Procedure

B.4.1Test portion

B.4.2Blank test

B.4.3Preparation of the calibration graph

B.4.3.1Preparation of standard calibration solutions

B.4.3.2Spectrometric measurements

B.4.3.3Plotting the graph

B.4.4Determination

B.4.4.1Preparation of the test solution

B.4.4.2Spectrometric measurements

B.5Expression of results

Annex CDetermination of total iron content (normative)

C.1Principle

C.2Reagents and materials

C.3Apparatus

C.4Procedure

C.4.1Test portion

C.4.2Blank test

C.4.3Preparation of the calibration graph

C.4.3.1Preparation of standard calibration solutions

C.4.3.2Spectrometric measurements

C.4.3.3Plotting the graph

C.4.4Determination

C.4.4.1Preparation of the test solution

C.4.4.2Spectrometric measurements

C.5Expression of results

Annex DDetermination of specific surface area (normative)

D.1Principle

D.2Materials

D.3Apparatus

D.4Preparation of the test portion

D.5Procedure

D.6Expression of results

D.7Notes on procedure — Preparation of the Areameter

D.7.1General

D.7.2Volume-equalization test

D.7.3Leak test

D.7.4Operational check

D.7.5Maintenance

Annex EDetermination of the specific surface area by multipoint nitrogen adsorption test (BET test) (normative)

E.1General

E.2Significance and use

E.3Procedure

Annex FDetermination of granule size fractions of granulated precipitated silica (normative)

F.1Principle

F.2Sampling

F.3Apparatus

F.4Procedures

F.5Expression of results

Annex GDetermination of CTAB surface area (normative)

G.1General

G.2Principle

G.3Reagents and materials

G.4Apparatus

G.5Sample preparation

G.6Procedure

G.6.1Test portion

G.6.2Adsorption

G.6.3Separation

G.6.3.1General

G.6.3.2Separation using a centrifuge

G.6.3.3Separation using a syringe

G.6.3.4Separation using a membrane filter

G.6.4Titration

G.6.5Standardization of solutions

G.7Calculation

G.8Precision

Annex HClassification of silicas and typical physical and chemical properties (informative)

H.1General

H.2Classification according to specific surface area

H.3Typical values of physical and chemical properties

H.4Physical form and dispersibility

H.5Rubber tests

Bibliography