NF EN 60970 : 2007
Current
The latest, up-to-date edition.
INSULATING LIQUIDS - METHODS FOR COUNTING AND SIZING PARTICLES
12-01-2013
INTRODUCTION
1 Scope
2 Normative references
3 General caution, health, safety and environmental
protection
4 Significance
5 Comparison and limitation of the methods
6 Types and identification of particles
7 Sampling
7.1 General remarks
7.2 Sampling vessels
7.3 Cleaning of sampling bottles
7.4 General directions for sampling
7.5 Sampling procedure
7.6 Labelling of samples
7.6.1 Samples from tanks
7.6.2 Samples from electrical equipment
8 Preparation of the samples for analysis
9 Method A - Automatic particle size analyzer
9.1 Summary of method
9.2 Apparatus and auxiliary materials
9.3 Calibration procedures
9.4 Preparation of the apparatus for counting
9.5 Preparation of sample before counting
9.6 Preparation of sample for counting
9.7 Counting procedures
9.8 Report
9.9 Precision
9.10 Repeatability
9.11 Reproducibility
10 Method B - Optical microscopy
10.1 Principle
10.2 Procedure by transmitted light
10.3 Procedure by incident light
Annex A (informative) Use of syringes as sampling vessels
Annex B (informative) Calibration of the automatic particle
counters
Annex ZA (normative) Normative references to international
publications with their corresponding
European publications
Bibliography
Describes the sampling procedures and methods for the determination of particle concentration and size distribution.
| DevelopmentNote |
Indice de classement: C27-232. PR NF EN 60970 September 2006. (09/2006) Supersedes NFC 27 232. (05/2008)
|
| DocumentType |
Standard
|
| PublisherName |
Association Francaise de Normalisation
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| I.S. EN 60970:2007/AC:2008 | Identical |
| BS EN 60970:2007 | Identical |
| EN 60970:2007/corrigendum:2008 | Identical |
| IEC 60970:2007 | Identical |
| NF ISO 4407 : 2002 | HYDRAULIC FLUID POWER - FLUID CONTAMINATION - DETERMINATION OF PARTICULATE CONTAMINATION BY THE COUNTING METHOD USING AN OPTICAL MICROSCOPE |
| ISO 5884:1987 | Aerospace Fluid systems and components Methods for system sampling and measuring the solid particle contamination of hydraulic fluids |
| NF EN 50353 : 2003 | INSULATING OIL - DETERMINATION OF FIBER CONTAMINATION BY THE COUNTING METHOD USING A MICROSCOPE |
| IEC 60475:2011 | Method of sampling insulating liquids |
| NFC 27 41975 : 1975 | METHOD OF SAMPLING LIQUID DIELECTRICS |
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