IEC 60982:1989
Current
The latest, up-to-date edition.
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English - French
12-15-1989
FOREWORD
PREFACE
Clause
1 Scope
2 Object
3 Definitions
3.1 Definitions relating to the measuring method
3.1.1 Level measuring systems utilizing ionizing
radiation
3.1.2 Transmission level measuring system
3.1.3 Backscattering level measuring system
3.2 Definitions relating to the apparatus
3.2.1 Source assembly
3.2.2 Detector assembly
3.2.3 Measuring head
3.2.4 Processing unit
3.2.5 Movement device
3.2.6 Air gap
3.2.7 Total measuring path (transmission systems)
3.2.8 Attenuation path (transmission systems)
3.3 Definitions relating to specific apparatus properties
3.3.1 Input quantity
3.3.2 Limit values of the input quantity
3.3.3 Contrast
3.3.4 Resolution
3.3.5 Switching difference
3.3.6 Switching point
3.3.7 Time behaviour
3.3.8 Instability
3.3.9 Statistical reliability
3.3.10 Linearity
3.3.11 Deviation due to movement
4 Test methods
4.1 Testing system performance
4.1.1 Type testing of the processing unit in the
laboratory by electronic simulation or calculation
4.1.2 Type testing of the measuring system by simulation
of the medium to be measured by using absorbers
4.1.3 On-site tests
4.2 Errors due to application-related quantities
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