EN ISO 25139:2011 PDF

Name: EN ISO 25139:2011 — Stationary source emissions - Manual method for the determination of the methane concentration using gas chromatography (ISO 25139:2011)
SKU: EN ISO 25139:2011
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Stationary source emissions - Manual method for the determination of the methane concentration using gas chromatography (ISO 25139:2011)

Название (английский):

EN ISO 25139:2011

Stationary source emissions - Manual method for the determination of the methane concentration using gas chromatography (ISO 25139:2011)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 26
Дата публикации:: 15 апреля 2011 г.
Издание:: CEN EN 25139 edition 1 version 1
ICS:: 13.040.40

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Описание (английский):

ISO 25139:2011 specifies a manual method for the determination of the concentration of methane emissions from stationary sources. ISO 25139:2011 specifies an independent method of measurement, which is validated for mass concentrations up to 1 500 mg/m3.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 25139:2011 (ISO 25139:2011) specifies a manual method for determining methane (CH4) concentration in emissions from stationary sources using gas chromatography (GC). The method is defined as an independent measurement method (suitable for calibration/validation of automated systems) and is validated for mass concentrations up to 1 500 mg/m3. The standard covers sampling, analytical determination, calculation of results, and quality assurance/quality control (QA/QC) procedures.

Key topics and requirements

Principle: Extract waste gas, collect a sample (bag, canister or direct loop) and analyze a subsample by GC after separation on packed or capillary columns; detection is typically by flame ionization detector (FID).

Sampling system requirements: Heated sampling probe (stainless steel or glass), particle filter (quartz fibre/ceramic), sample gas cooler or dryer, flow meter, pumps, and gas-sampling vessel (bag, glass tube or canister). Short, condensation-free sampling lines are required.

Analytical apparatus: Gas chromatograph with appropriate column type (packed or capillary/PLOT) and FID, calibrated with reference gases of known methane content.

Performance characteristics: The standard addresses calibration, repeatability, limit of detection, uncertainty, and validated concentration range (up to 1 500 mg/m3).

QA/QC procedures: Routine checks, frequency of calibrations, use of reference gases, and documentation requirements to ensure traceability and measurement reliability.

Interferents and corrections: Identification and management of interfering substances and accounting for water vapour and oxygen when calculating methane mass concentration.

Applications and users

Emission monitoring and reporting of methane from stationary sources such as landfill vents, biogas plants, combustion processes and industrial stacks.

Independent verification and calibration/validation of permanently installed automatic measuring systems (serves as a reference/standard method).

Environmental laboratories, emission testing service providers, plant operators, regulatory agencies and QA/QC personnel who perform or audit methane measurements.

Use cases include compliance testing, emissions inventories, performance checks of automated monitors, and research into source-specific methane releases.

Related standards

ISO 9169 - performance characteristics of automatic measuring systems (referenced).

EN 15267-3 - certification and performance criteria for automated emission monitoring systems (referenced).

ISO 25140:2010 - related terminology and concepts for stationary source emissions (referenced).

EN 14181 (mentioned contextually) - standard reference methods and SRM concepts for validation/certification.

Keywords: methane emissions, gas chromatography, EN ISO 25139, ISO 25139:2011, stationary source emissions, flame ionization detector, sampling system, QA/QC, independent measurement method.

EN ISO 25139:2011 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

Related standards

Технические детали

ISO 25139:2011

Stationary source emissions — Manual method for the determination of the methane concentration using gas chro…

ISO 25140:2010

Stationary source emissions — Automatic method for the determination of the methane concentration using flame…

SIST EN ISO 9169:2007

Air quality - Definition and determination of performance characteristics of an automatic measuring system (I…

BS EN ISO 25139:2011

Stationary source emissions. Manual method for the determination of the methane concentration using gas chrom…