BS EN ISO 11337:2010
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Plastics. Polyamides. Determination of e-caprolactam and w-laurolactam by gas chromatography
Hardcopy , PDF
10-02-2023
English
31-01-2011
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Method A: Extraction method
5 Method B: Dissolution method
Describes a method for determining epsilon-caprolactam and omega-laurolactam in polyamides by gas chromatography. Appropriate particularly for the determination of epsilon-caprolactam in polyamide 6 and omega-laurolactam in polyamide 12. Bearing in mind that gas chromatography offers a wide range of possible conditions, the method specified is that shown to have been suitable in practice.
| Committee |
PRI/21
|
| DevelopmentNote |
Supersedes 96/122656 DC. (06/2004) Supersedes 09/30194950 DC. (01/2011)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
This International Standard specifies a method for determining ε-caprolactam and ω-laurolactam in polyamides by gas chromatography. It is suitable particularly for the determination of ε-caprolactam in polyamide 6 and ω-laurolactam in polyamide 12. Bearing in mind that gas chromatography offers a wide range of possible conditions, the method specified is that shown to have been suitable in practice.
Two variants of the basic method are specified:
-
Method A is an extraction method with boiling methanol, and the extract is injected into a gas chromatograph.
-
Method B is a method using a solvent, and the solution is injected into a gas chromatograph.
| Standards | Relationship |
| ONORM EN ISO 11337 : 2011 | Identical |
| NF EN ISO 11337 : 2011 | Identical |
| UNI EN ISO 11337 : 2011 | Identical |
| NEN EN ISO 11337 : 2011 | Identical |
| EN ISO 11337:2010 | Identical |
| ISO 11337:2010 | Identical |
| DIN EN ISO 11337:2011-04 | Identical |
| I.S. EN ISO 11337:2010 | Identical |
| NS EN ISO 11337 : 2010 | Identical |
| SN EN ISO 11337 : 2011 | Identical |
| NBN EN ISO 11337 : 2011 | Identical |
| UNE-EN ISO 11337:2005 | Identical |
| ISO 565:1990 | Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of openings |
| ISO 472:2013 | Plastics — Vocabulary |
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