NFPA T3.21.18 : 1994 : R2015
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
PNEUMATIC FLUID POWER - RECOMMENDED PRACTICE FOR CALIBRATION AND USE OF FLOWMETERS
Hardcopy , PDF
05-18-2020
English
01-01-2015
Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Symbols and abbreviations
5 Background on types of flowmeters
6 Background on methods of primary calibration
7 Other levels of calibration
8 Reference devices
9 Frequency of flowmeter calibration and limitations
10 Calibration procedures using sonic flow nozzles
(or other sonic reference devices)
11 Calibration procedures using upstream subsonic
flow nozzles (or other subsonic reference devices)
12 Calibration procedures using downstream subsonic
flow nozzles (or other subsonic reference devices)
13 Correction factors
14 Flowmeter use and maintenance
15 Identification statement
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