EN 12176:1998
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Characterization of sludge - Determination of pH-value
18-02-1998
16-10-2013
Foreword
0 Introduction
1 Scope
2 Normative references
3 Definitions
3.1 pH value
3.2 Standard buffer solutions
4 Principle
5 Interferences
6 Hazards
7 Reagents
8 Apparatus
9 Preparation of samples
9.1 Sample preservation
9.2 Preparation of liquid sludge samples
9.3 Preparation of paste-like and solid sludges
10 Measurement of pH-value
10.1 pH meter set up and standardization
10.2 Measurements
11 Expression of results
12 Test report
Annex A (normative) primary pH-standard reference solutions
(according to ISO 10523)
Annex B (informative) Bibliographical references
The scope of this standard is the sludges, i.e. and sludges products from: - storm water handling; - night soil; - urban wastewater collecting systems; - urban wastewater treatment plants; - treating industrial wastewater similar to urban wastewater (as defined in Directive 91/271 EEC); - water supply treatment plants; - water distribution systems; - but excluding hazardous sludges from industry.
| Committee |
CEN/TC 308
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Withdrawn
|
| Standards | Relationship |
| NEN EN 12176 : 1998 | Identical |
| BS EN 12176:1998 | Identical |
| NF EN 12176 : 1998 | Identical |
| PN EN 12176 : 2004 | Identical |
| NBN EN 12176 : 1998 | Identical |
| I.S. EN 12176:1998 | Identical |
| NS EN 12176 : 1ED 1998 | Identical |
| DIN EN 12176:1998-06 | Identical |
| UNE-EN 12176:1998 | Identical |