EN ISO 172:1998
Current
The latest, up-to-date edition.
Plastics - Phenol-formaldehyde mouldings - Detection of free ammonia (ISO 172:1978)
22-07-1998
FOREWORD
1 SCOPE AND FIELD OF APPLICATION
2 PRINCIPLE
3 APPARATUS
4 PREPARATION OF TEST SAMPLE
5 PROCEDURE
6 EXPRESSION OF RESULTS
7 TEST REPORT
Specification of a qualitative method of detecting the presence of free ammonia or other volatile bases in phenol-formaldehyde mouldings by the exposure of an indicator paper to the vapour from a moistened powdered sample. It may be used when the absence of free ammonia is a requirement.
| Committee |
CEN/TC 249
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Current
|
| Standards | Relationship |
| UNE-EN ISO 172:1999 | Identical |
| UNI EN ISO 172 : 2001 | Identical |
| SN EN ISO 172 : 1999 | Identical |
| NF EN ISO 172 : 1998 | Identical |
| ISO 172:1978 | Identical |
| NS EN ISO 172 : 1ED 1998 | Identical |
| DIN EN ISO 172:1998-10 | Identical |
| NBN EN ISO 172 : 1998 | Identical |
| NEN EN ISO 172 : 1998 | Identical |
| PN EN ISO 172 : 2004 | Identical |
| BS EN ISO 172:1998 | Identical |
| I.S. EN ISO 172:1998 | Identical |
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