UNI EN ISO 10523 : 2012
Current
The latest, up-to-date edition.
WATER QUALITY - DETERMINATION OF PH
10-05-2012
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Interferences
6 Reagents
7 Apparatus
8 Sampling
9 Procedure
10 Expression of results
11 Test report
Annex A (informative) - pH values of primary standard reference
solutions
Annex B (informative) - Operative measurements in flow systems
Annex C (informative) - Field measurement (on-site measurement)
Annex D (informative) - Measurements of the pH value in water
with low ionic strength
Annex E (informative) - Performance data
Bibliography
Describes a method for determining the pH value in rain, drinking and mineral waters, bathing waters, surface and ground waters, as well as municipal and industrial waste waters, and liquid sludge, within the range pH 2 to pH 12 with an ionic strength below I = 0,3 mol/kg (conductivity: gamma [25 degrees C] < 2000 mS/m) solvent and in the temperature range 0 degrees C to 50 degrees C.
| DevelopmentNote |
Supersedes UNI ISO 10523. (06/2012)
|
| DocumentType |
Standard
|
| PublisherName |
Ente Nazionale Italiano di Unificazione (UNI)
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| EN ISO 10523:2012 | Identical |
| ISO 10523:2008 | Identical |
| ISO 4796-2:2000 | Laboratory glassware — Bottles — Part 2: Conical neck bottles |
| ISO 80000-9:2009 | Quantities and units Part 9: Physical chemistry and molecular physics |
| ISO 5667-3:2012 | Water quality Sampling Part 3: Preservation and handling of water samples |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
| DIN 19266:2015-05 | PH MEASUREMENT - REFERENCE BUFFER SOLUTIONS FOR THE CALIBRATION OF PH MEASURING EQUIPMENT |
| ISO/IEC Guide 98-3:2008 | Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) |
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