ДСТУ EN ISO 10715:2022 Природный газ. Отбор проб (EN ISO 10715:2022, IDT; ISO 10715:2022, IDT)
ДСТУ EN ISO 10715:2022
(EN ISO 10715:2022, IDT; ISO 10715:2022, IDT)
Природний газ. Відбирання проб
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)
Contents
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Safety considerations
5 Principles of sampling
6 The concept of representative sample
7 Types of sampling
7.1 Sampling method considerations
7.2 Spot sampling
7.3 Incremental sampling (continuous or composite)
7.4 Online or direct sampling
8 Sampling location
8.1 General
8.2 Sampling place
8.3 Sampling position
8.4 Sampling point
9 Ideal implementation of gas sampling
9.1 General
9.2 Gas sorption
9.3 Materials used in sampling
9.4 Sample contamination
9.5 Sample condensation
9.6 Disturbance of the flow through the sampling system
9.7 Delay time
10 Sampling equipment
10.1 General
10.2 Probes
10.3 Tubings
10.4 Filters, membranes and separators
10.5 Valves and safety valves
10.6 Fittings
10.7 Flow monitoring and control
10.8 Pressure reducers
10.9 Pressure sensor/manometers
10.10 Heating devices
10.11 Seals and lubricants
10.12 Sample containers or cylinders
10.13 Concentration devices
10.14 Number and sequence of equipment
11 Verification of the system
12 Troubleshooting
Annex A (informative) Purposes of sampling, panel of
compounds and information in the
sampling report
Annex B (informative) Procedures for sampling
Annex C (informative) Gas sorption effect: adsorption/desorption
Annex D (informative) Cleaning of steel sampling cylinders
Annex E (informative) Joule-Thomson cooling and phase behaviour
Annex F (informative) Vortex shedding and associated problems
Annex G (informative) Guidelines for the calculation of the residence time
Annex H (informative) Protocol for gas sampling system verification
Annex I (informative) Number of samples
Bibliography
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