UNE-EN 903:1994
Current
The latest, up-to-date edition.
Water quality - Determination of anionic surfactants by measurement of the methylene blue index MBAS (ISO 7875-1:1984 modified)
Hardcopy , PDF
Spanish, Castilian, English
14-06-1994
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Cooperating organizations
National foreword
Foreword
Method
1. Introduction
2. Scope and field of application
3. References
4. Principle
5. Reagents
6. Apparatus
7. Sampling and samples
8. Procedure
9. Expression of results
10. Interferences
11. Test report
Figure
1. Gas-stripping apparatus
National annex NA (informative) Committees responsible
National annex NB (informative) Cross-references
ALSO NUMBERED AS BS 6068: SECTION 2.23: 1994. Describes how natural and synthetic anionic surface active substances may be determined as methylene-blue active substances (MBAS). Mentions the MBAS index, a summary parameter method. Coverage includes reagents, apparatus and procedure.
| Committee |
CTN 77/SC 1
|
| DevelopmentNote |
Supersedes UNE 55726. (07/2003)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
Asociacion Espanola de Normalizacion
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| NBN EN 903 : 1994 | Identical |
| NF EN 903 : 1994 | Identical |
| NEN EN 903 : 1994 | Identical |
| NS EN 903 : 1ED 1993 | Identical |
| I.S. EN 903:1994 | Identical |
| UNI EN 903 : 1995 | Identical |
| BS EN 903:1994 | Identical |
| EN 903:1993 | Identical |
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