NEN 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Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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
04-08-2016
12-01-2013
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
Covers the sludges, i.e. and sludges products from storm water handling, night soil, urban wastewater collecting systems, urban wastewater treatment plants, treating of industrial wastewater similar to urban waste water, water supply treatment plants, and water distribution systems. Does not include hazardous sludges from industry. Applies to determination of pH values of sludges, including liquid, paste-like or solid matter.
| DocumentType |
Standard
|
| PublisherName |
Netherlands Standards
|
| Status |
Withdrawn
|
| Standards | Relationship |
| I.S. EN 12176:1998 | Identical |
| BS EN 12176:1998 | Identical |
| UNE-EN 12176:1998 | Identical |
| DIN EN 12176:1998-06 | Identical |
| UNI EN 12176 : 2000 | Identical |
| EN 12176:1998 | Identical |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.