OPERATING CONDITIONS FOR INDUSTRIAL-PROCESS MEASUREMENT AND CONTROL EQUIPMENT - CORROSIVE AND EROSIVE INFLUENCES
International Electrotechnical Committee
FOREWORD
PREFACE
Clause
1 Scope
2 Object
3 General
4 Non-solid substances
4.1 Definitions
5 Gases and vapours
5.1 Contamination effects
5.2 Inorganic chlorine compounds
5.3 Explanation of contaminant severity levels
6 Aerosols
7 Liquids
8 Solid substances
8.1 Kind of industrial-process and location within
that process
8.2 Nature of solid substances in the environment
which could affect the instruments
8.3 In combination with
8.4 Frequency of occurrence
8.5 Size
8.6 Concentration in mg/kg or g/kg of dry air
8.7 Velocity in m/s
8.8 Thermal conductivity
8.9 Electrical conductivity
8.10 Magnetic permeability
8.11 Example given to demonstrate the use of the
questionnaire
9 Flora and fauna
APPENDIX A - Industrial contaminants
APPENDIX B - Methods of classification of reactive environments
Considers the corrosive and erosive industrial environment to which land-based and off-shore industrial-process measurement and control systems or parts of systems may be exposed during operation, during periods when they are installed but inactive, during storage or transportation. Maintenance and repair conditions are not considered.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | SC 65A |
