Method Implementation Document (MID 15259)
DRAFTBS EN 15259:2007
Stationary source emissions – Requirements for the measurement sections and sites and for the measurement objective, plan and report
Environment Agency
DRAFT2009
Record of amendments
Version number / Date / AmendmentStatus of this document
This method implementation document may be subject to review and amendment following publication. The most recent version of this note is available on the Source Testing Association web site at:
Role of Method Implementation Documents
The Environment Agency recognizes that European and International standards may need supplementing by Method Implementation Documents (MIDs) to ensure they are being implemented consistently.
We have established our Monitoring Certification Scheme: MCERTS to deliver quality environmental measurements. Organizations wishing to include a standard in their schedule of MCERTS accreditation shall follow the requirements of the standard and, where available, the associated MID.
It may not be necessary to produce a MID for every standard but where required they will be used to supplement standards called up by Technical Guidance Note M2. MIDs provide details on how the preferred standards shall be used for regulatory monitoring.
MIDs are produced in collaboration with the Source Testing Association and its members.
Copies of MIDs and further information on MCERTS including copies of performance standards and guidance can be obtained from our web-site at:
Or from the STA web-site at:
Feedback
Any comments or suggested improvements to this MID should be e-mailed to Rupert Standring at .
Contents
Introduction
1Scope
2Normative references
3Definitions symbols and abbreviations
4Symbols and abbreviations
5Principles
6Measurement section and measurement site
7Measurement objective and measurement plan
8Sampling strategy
9Measurement report
Introduction
Comité Européen de Normalisation (CEN) standard BS EN 15259 is a European standard that is of importance to plant designers, plant operators and stack emission monitoring organisations.
In summary BS EN 15259:
- specifies requirements for stack emission monitoring measurement locations;
- applies to both periodic measurements and to continuous emission measurement systems;
- outlines the sampling strategy required to obtain a representative sample.
This MID provides guidance on meeting the requirements of BS EN 15259. It does not repeat text, tables or diagrams from BS EN 15259, instead it refers to the relevant sections of this standard. It is therefore essential that the reader has a copy of BS EN 15259.
1Scope
No additional requirements
2Normative references
No additional requirements
3Definitionssymbols and abbreviations
No additional requirements
4Symbols and abbreviations
No additional requirements
5Principles
No additional requirements
6Measurement section and measurement site
Information on measurement sections and measurement sites are provided in Environment Agency Technical Guidance note M1.
7Measurement objective and measurement plan
The Environment Agency’s minimum requirements for meeting this section of the standard is provided in the MCERTS performance standard for organisations.
Note: the measurement plan is also known as a site specific protocol.
8Sampling strategy
8.1General
No additional requirements
8.2Measurements of particulates and other components by grid measurement
Further information on sampling strategy for grid measurements is provided in MID 13284-1.
8.3Determination of homogeneity
a) Scope of homogeneity test
The homogeneity test is only applicable to combustion processes, such as those regulated under the Waste Incineration and Large Combustion Plant Directive.
The test is not required for stacks with sampling plane areas of <1.1 m2 (i.e. below 1.1 m in diameter for circular ducts).
If the following have Emission Limit Values in the Operator’s Permit then ahomogeneity testshall be carried out for them:
- CO
- NOx
- TOC
A homogeneity test for NOx may be carried out by measuring NO. It is not necessary to perform an NO2 measurement in addition to NO.
The homogeneity test shall be carried out for O2because it is used to correct the final measurement result.
For determinands where the standard reference method is a manual (non-instrumental) method, a surrogate or alternative method maybe used (see Table 1).
Table 1: Surrogates for manual methods
Manual method / Determinand / Surrogate / Alternative methodEN 14791 / SO2 / O2 / TGN M21
EN 1911 / HCl / O2 / TGN M22
ISO 15713 / HF / O2 / TGN M22
EN 14791 / NH4 / O2 / TGN M22
EN 13649 / Speciated VOCs / Total VOCs / -
b) Responsibility on operator
It is a mandatory requirement to assess the homogeneity of gases fora newly built plant or newly installed measurement plane. It is also required when a CEM is being instlalled (see 8.4).
For existing measurement locations it is not a mandatory requirement for this test to be carried out.
Note: investigation into gas homogeneity is being carried out at several large industrial installations. A report will be published on the results.
As a preliminary assessment the Operator may wish to have the test carried out for oxygen.
c) Responsibility on MCERTS accredited monitoring organisation
MCERTS accredited monitoring organisations shall have documented procedures to meet the requirements for the determination of homogeneity. This shall include having the required equipment and a method for calculation.
The MCERTS accredited monitoring organisation (contractor) shall inform the Operator that this test canbe carried out to confirm that the sample location is suitable for measuring gases from a single point. Whether the test is carried out or not is to be agreed by the Operator and the monitoring organisation. This should be documented in the site specific protocol and the monitoring report.
Note: if the sampling facilities and access to the sample ports do not comply with TGN M1, it may not be possible to carry out the test fully due to practical and safety considerations.
d) Carrying out the test
The test is carried out using instrumental analysers. The analyzers shall be verified for performance, such as by the annual systems check specified in reference methods (i.e. zero, span, linearity, response time compared to moving system etc).
Note: the analyzers do not have to be MCERTS certified.
When measuring water soluble gases the full length of the probe shall be heated to a temperature of 20K above the stack gas dew point. This is an important consideration as it is important to ensure that condensation of stack gas in the probe does not occur.
When measuring CO or O2 an unheated probe may be used.
The standard gives a procedure for carrying out the test using paired instruments or single instruments.
e) Use of a CEM system
Its acceptable to use a CEMs system, as the fixed instrument.
The standard states that a permanently installed CEM may be used provided it is working in accordance with EN 14181. Its therefore necessary to confirm that the CEM has a valid up to date QAL2 / AST.
8.4Permanently installed AMS
The procedure described in the standard is for finding a suitable point for locating a extractive point source CEM. The procedure should be adapted for cross duct systems.
It is a mandatory requirement to carry out this test when installing all types of CEMs (i.e. across stack, in-situ and extractive systems).
9Measurement report
If carrying out MCERTS accredited work the monitoring report shall be submitted in the report format specified in the Manual stack emission monitoring performance standard for organisations (Annex H) available from
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