GOST 8.439-81
ГОСТ 8.439-81
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State system for ensuring the uniformity of measurements. Water flow rate in closed conduits. Technique of measuring by velocity-area method
Государственная система обеспечения единства измерений. Расход воды в напорных трубопроводах. Методика выполнения измерений методом площадь-скорость
Status: Effective
The standard establishes a method for measuring the volume flow of water in pressure pipelines using the area-speed method using Pitot tubes and hydrometric spinners and the measurement accuracy standards for a practically stationary and uniform water velocity field, the composition and property of which do not prevent the use of these measuring instruments over the cross-section of the pipeline during the measurement practically does not change.
Стандарт устанавливает методику выполнения измерений объемного расхода воды в напорных трубопроводах методом площадь - скорость при помощи трубок Пито и гидрометрических вертушек и нормы точности измерений при практически стационарном и равномерном поле скоростей воды, состав и свойство которой не препятствуют применению указанных средств измерений, а температура и плотность по сечению трубопровода за время измерений практически не изменяются.
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Format: Electronic (pdf/doc)
Approved: USSR State Committee for Standards,
9/23/1981
SKU: RUSS72702
The Product is Contained in the Following Classifiers:
PromExpert »
SECTION II. METROLOGICAL »
II Measurements »
3 Measurement of flow parameters, flow rate, level, volume of substances »
ISO classifier »
17 METROLOGY AND MEASUREMENTS. PHYSICAL PHENOMENA »
17.120 Measurement of fluid flow parameters »
National standards »
17 METROLOGY AND MEASUREMENTS. PHYSICAL PHENOMENA »
17.120 Measurement of fluid flow parameters »
ISO classifier »
17 METROLOGY AND MEASUREMENTS. PHYSICAL PHENOMENA »
17.120 Measurement of fluid flow parameters »
17.120.01 Measurement of parameters of fluid flow in general »
National standards »
17 METROLOGY AND MEASUREMENTS. PHYSICAL PHENOMENA »
17.120 Measurement of fluid flow parameters »
17.120.01 Measurement of parameters of fluid flow in general »
National Standards for KGS (State Standards Classification) »
Latest edition »
T General technical and organizational and methodological standards »
T8 State measurement system »
T86 Measurement Techniques »
National Standards for KGS (State Standards Classification) »
Latest edition »
T General technical and organizational and methodological standards »
T8 State measurement system »
T86 Measurement Techniques »
T86.1 Measurement of geometric quantities »
National Standards for KGS (State Standards Classification) »
Latest edition »
T General technical and organizational and methodological standards »
T8 State measurement system »
T86 Measurement Techniques »
T86.2 Measurement of mechanical quantities »
National Standards for KGS (State Standards Classification) »
Latest edition »
T General technical and organizational and methodological standards »
T8 State measurement system »
T86 Measurement Techniques »
T86.3 Measurement of parameters of flow, consumption, level, volume of substances »
National Standards for OKSTU »
SYSTEMS OF GENERAL TECHNICAL AND ORGANIZATIONAL-METHODOLOGICAL STANDARDS »
State system for ensuring the uniformity of measurements (GSI) »
The Document References:
GOST 10-75: Inside micrometers. The main parameters. Technical requirements
GOST 11161-71: Micro manometers for liquid. Types and main parameters
GOST 112-78: Meteorological glass thermometers
GOST 15126-80: Water flow rate measuring instruments. Fluvial hydrometric current meters. General technical requirements
GOST 166-80: Vernier callipers. Specifications
GOST 18140-77: SSI differential pressure gauges. General specifications
GOST 5072-79: Mechanical stop-watches. Specification
GOST 7502-80: Measuring metal tapes. Specifications
The Document is Referenced By:
GOST 34345-2017: Multi-split air conditioners and air-to-air heat pumps. Testing and performance evaluation
GOST 34346.1-2017: Water-source heat pumps. Testing and rating for performance. Part 1. Water-to-air and brine-to-air heat pumps
GOST R 51657.2-2000: Water flow measurement in hydromelioration and water economics systems. Methods of water flow measurement. Classification
GOST R 55260.3.2-2013: Hydro Power Plants. Part 3-2. Estimation procedures of hydroturbine operating conditions
MI 1652-90: State system for ensuring uniformity of measurements. Ultrasonic flowmeters with counter "Akustron" model UZR-V. Method of verification
RD 34.21.543-88: Model Guidelines for Operation of Hydraulic Structures for Process Water Supply Systems of Thermal Power Stations
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