PREN 15933 : DRAFT 2009
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
SOIL, SLUDGE, AND TREATED BIOWASTE - DETERMINATION OF PH
01-08-2012
12-01-2013
Foreword
Introduction
1 Scope
2 Comments to the method
3 Normative references
4 Terms and definitions
5 Principle
6 Interferences and sources of errors
7 Reagents
8 Apparatus
9 Sampling and sample pre-treatment
10 Procedure
10.1 Preparation of a suspension
10.2 Calibration of the pH meter
10.3 Measurement of the pH
10.4 Blank determination
10.5 Quality Assurance of the overall procedure
11 Expression of results
12 Precision data
13 Test report
Annex A (informative) - Repeatability and reproducibility data
A.1 Materials used in the interlaboratory comparison study
A.2 Interlaboratory comparison results
A.3 Repeatability and reproducibility
Annex B (informative) - Comparison of validation results with
earlier validation studies using the same method
Bibliography
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