emission measurments - accreditation (cder).ppt

Emission measurements – stack sampling & Accreditation

Dr. Cor de Ruiter

CDR QA SUPPORT / INAB

June 2011

Emission measurements – stack sampling

- Quality assurance: Accreditation versus Certification

- Requirements for organizations involved in emission measurements – stack sampling

- The Irish National Accreditation Board & the accreditation process (explained by Pat O’Brien)

- Accreditation assessments in practice

- Most important issues addressed during accreditation assessments

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QA – Accreditation versus Certification

EANational Accreditation

Body (INAB)ISO/IEC 17011

Certification BodiesISO/IEC 17021,

EN 45011Inspection Bodies

ISO/IEC 17020

Companies(may be involved in

Emission measurem.ISO 9001, 14001, 18001

ACCREDITATION

CERTIFICATION

EA Multilateral Agreement

NOTE: ISO/IEC 17025 is NOT

a certification standard !

2

Mutual Recognition AgreementsWith other regions

Laboratories Emission measurem.

/ stack samplingISO/IEC 17025

Accreditation versus Certification

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CERTIFICATIE (for profit)ISO 9001:2008• Deming cycle (PDCA)• Personnel & Organization

• Meeting customer requirements• Document control• Primary Processes:

- more in general - no technical experts

ACCREDITATIE (non-profit)EN-ISO/IEC 17025:2005 • Deming cycle (PDCA)• Personnel & Organization• Independence, impartiality• Meeting customer requirements• Document control• Primary Processes - technical performance in detail - by technical experts - aiming at justified confidence that

valid test results are reported

COMPETENCE !

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ACCREDITATIONAssessment of Competence

CERTIFICATIEAssessment of Conformity

Accreditation versus Certification

Assessment of competence

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Assessment by PEERS

This is the key aspect of accreditation.

Certification does not include this.

Requirements for organizations involved in emission measurements – stack sampling

In most European countries, organizations involved in emission measurements – stack sampling, issuing test reports with regard to environmental licenses (including maximum allowable emissions), shall be accreditated against EN-ISO/IEC 17025 by its national Accreditation Body (AB). This AB shall be a signatory of the EA-MLA (ref. EA website www.european-accreditation.org)

EU Directives / Regulations more and more refer to EN-ISO/IEC 17025

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http://www.european-accreditation.org/

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The General Assembly of EA has decided that, effective 1 November 2009, the national Accreditation Bodies that are signatory of the EA-MLA shall use CEN/TS 15675:2007“Air Quality – Measurement of stationary source emissions”, in the assessment of organizations involved in emsion meaurements – stack sampling

CEN/TS 15675:2007 involves application of EN ISO/IEC 17025:2005 to periodic measurements

NOTE: It refers to EN 15259:2007 as mandatory standard !


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Application of standard reference methods (SRM’s)

Organic carbon EN 13526Total dust EN 13284-1Odour EN 13725QA of AMS EN 14181Total metals EN 14385Oxygen EN 14789Water vapour EN 14790Sulphur dioxide EN 14791Nitrogen oxides EN 14792Carbon monoxide EN 15056Dioxins EN 1948-1/3Gas velocity and volume flow rate ISO 10780

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Accreditation assessments in practice focus of the lead assessor

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Quality Policy and Objectives

Internal Audits

Complaint handling

Corrective Action

Preventive Action

Management Review

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Independence, impartiality- No conflict of interests

- Avoiding undue pressures

- Confidentiality

- Quality Manager with direct access to top management

Accreditation assessments in practice - focus of the lead assessor

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Organization & Personnel - Commitment of top management

- Technical manager / supervision

- Education, knowledge and work experience

- Job descriptions

- Qualification records

- Monitoring and Training


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Management system, document control and traceability of the primary process (reported results

towards original raw data)


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Performance of emission measurements – stack sampling conforming to measurement standards (EN, ISO), see Annex A of CEN/TS 15675:2007

This means witnessing of the performance of emission measurements !

By technical experts contracted by the Accreditation Body.

Accreditation assessments in practice - focus of the technical expert

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Assessment of the entire measurement process


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Assessment of the entire measurement processMobile laboratory

EquipmentIdentification; logbooks; maintenance; calibration; quality control, etd.

Competence of personnel


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Calibration of critical equipment, e.g. for measurement of O2, NOx, SO2, CO, CO2 - Traceability to international standards

Calibration gases with traceability to international standards (National Metrological Institute or ISO/IEC 17025 accredited calibration laboratory)


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Focus of the technical expert – traceability of cirtical equipment to international standards

Pitot-tubes: Determination of the k-factor (0.60 – 1.00)

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Gas meters Pressure gauges, barometer

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Thermocouple !

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Quality control of O2, NOx, SO2, CO, CO2 measuring equipment by means of quality control charts


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Assessment if the measurement location and sections (EN 15259:2007) and stack sampling


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Stack sampling


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Stack sampling with regard to odour


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Data acquisition / technical recordsData integrity, traceability, retreivability, control of data

transfers and calculations

ALSO WHEN IT IS RAINING !


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Quality assurance of tests conducted in the laboratory (e.g. GC/MS, ICP, LC)


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Participation in proficiency Testing – A mandatory requirement for accreditation !

The posibilities are limited. In particular, there are only a few locations in Europe (UK, Germany, France, Belgium) suitable for performing an on-site proficiency test for stack sampling.

Accreditation assessments in practice - focus of the technical expert & lead assessor

A ‘next best’ could be the off-site PT tests organized by e.g. NPL (UK) of NMi-VSL (Netherlands). NMi-VSL is accredited against ILAC-G13 (ISO/IEC 17043:2010) for such PT’s.

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For Irish laboratories the NPL (UK) may be suitable.


NPL (UK) organizes three proficiency testing (PT) schemes in the stack emissions measurement area: Particulate, Gas Measurement and Calibration Gas. The Particulate scheme is run annually with test items sent to participants. The Gas Measurement and Calibration Gas schemes are run bi-annually with measurements conducted at NPL.

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Reports-Clear and unambiguous

- Contents in line with CEN/TS 15675 and EN 15259

- Including measurement locations and their fitness for purpose, representativity of the industrial process, test results, measurement uncertainty, reference to accreditation

- Traceability to original raw data (digital and/or hardcopy)


02468

101214161820

0 1 2 3 4 5 6

Waarneming

Emissie

1 & 3: below the allowed emission 5: Above the allowed emission

2 & 4: no conclusion canbe drawn

Measurement uncertainty


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Thank you very much for your attention !

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Any questions ?

emission measurments - accreditation (cder).ppt

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