BS 7164-24:1996:2002 Edition
$102.76
Chemical tests for raw and vulcanized rubber – Determination of free sulfur
| Published By | Publication Date | Number of Pages |
| BSI | 2002 | 16 |
1.1 This International Standard specifies three methods for the determination of free sulfur in vulcanized rubber: two versions of the copper spiral method, and the sodium sulfite method.
1.2 The copper spiral methods are also applicable, subject to the limitations described in clause 4, to unvulcanized compounds.
1.3 Annex A gives a table listing the sulfur contribution, as a percentage by mass, to these free-sulfur methods for various commercial accelerators.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | Committees responsible for this British�Standard |
| 3 | Contents |
| 5 | Introduction 1 Scope 1.1 This International Standard specifies three methods for the determination of free sulfur in v… 1.2 The copper spiral methods are also applicable, subject to the limitations described in clause� 1.3 Annex A 2 Normative references 3 Principle 3.1 Copper spiral methods A and B 3.2 Sulfite method |
| 6 | 4 Limitations 4.1 The copper spiral methods generally determine elemental sulfur only, although certain sulfur�… 4.2 The sulfite method is excessively sensitive to the presence of sulfur-donating curatives and … 4.3 In the absence of sulfur-donating curatives, the methods are comparable in accuracy and preci… 5 Copper spiral method A 5.1 Reagents and materials 5.2 Apparatus |
| 7 | 5.3 Procedure |
| 8 | 6 Copper spiral method B 6.1 Reagents and materials 6.2 Apparatus |
| 9 | 6.3 Procedure 6.4 Expression of results 7 Sulfite method 7.1 Reagents and materials 7.2 Apparatus |
| 10 | 7.3 Procedure 8 Test report |
| 11 | Figure 1 Typical apparatus for extraction of free sulfur by copper spiral method A |
| 12 | Figure 2 Typical apparatus for determination of free sulfur by copper spiral method A |
| 13 | Figure 3 Typical apparatus for determination of free sulfur by copper spiral method B |
| 14 | Annex A (normative) (normative) Determination of free-sulfur content�— Effect of various commercial accelerators�on t… |
