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BS ISO 11943:2021

BS ISO 11943:2021

$167.15

Hydraulic fluid power. Online automatic particle-counting systems for liquids. Methods of calibration and validation

Published By Publication Date Number of Pages
BSI 2021 38
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This document establishes methods for:

  1. validating equipment used to prepare secondary calibration suspensions for automatic particle counters;

  2. performing online secondary calibration of automatic particle counters;

  3. matching two or more online particle counters, i.e. to count the same number of particles at a given size by two APCs associated online;

  4. validating online particle counting systems with and without online dilution as used, for example, to measure the filtration efficiency of a hydraulic filter as described in the multi-pass filter test in ISO 16889 .

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Units of measurements
10 5 Test equipment
6 Accuracy of measuring equipment and test conditions
11 7 Offline APC calibration procedure
8 Validation of online hydraulic equipment
14 9 Online secondary calibration of automatic particle counter
15 10 Matching of two or more particle counters
18 11 Validation of an online dilution and particle counting system
20 12 Precautions
21 13 Identification statement
22 Annex A (informative) Typical online calibration and validation system design information guidance
25 Annex B (informative) Hydraulic circuit design guidance for online counter adaptation to a multi-pass test stand
29 Annex C (informative) Summary of ISO interlaboratory study for online calibration and validation
36 Bibliography

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BS ISO 11943:2021
$167.15