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RS 941.210.3 DFJP Order of 22 April 2011 on Instruments for Measuring Effluents by Heating Plant (OIMEC)

Original Language Title: RS 941.210.3 Ordonnance du DFJP du 22 avril 2011 sur les instruments de mesure des effluents par les installations de chauffage (OIMEC)

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941.210.3

DFJP Guidelines on Instruments of Measurement of Effluents by Heating Facilities

(OIMEC)

April 22, 2011 (State 1 Er January 2013)

Federal Department of Justice and Police (DFJP),

Having regard to art. 5, para. 2, 8, para. 2, 16, para. 2, 24, para. 3, and 33 of the order of 15 February 2006 on measuring instruments (Ordinance on measuring instruments) 1 , 2

Stops:

Section 1 General provisions

Art. 1 Purpose

This Order governs:

A.
Requirements for effluent measuring instruments by heating plants;
B.
The procedures for placing these measuring instruments on the market;
C.
Procedures for maintaining the stability of the measures of these instruments.
Art. 2 Scope of application

The instruments used for measurements and control of emissions by heating installations in accordance with Art. 13 of the Air Protection Order of December 16, 1985 (OPair) 1 Subject to the provisions of this order for:

A.
Oil and gas heaters whose power does not exceed 1 MW;
B.
Wood heaters whose power does not exceed 70 kW.

1 RS 814.318.142.1

Art. 3 Definitions

In this order, the following means:

A.
Heating installation: Stationary installation producing energy or heat by combustion in accordance with Annex 3, c. 1, para. 1, OPair 1 ;
B.
Oil: "Extra-light" heating oil in accordance with Annex 5, c. 11, para. 1, OPair;
C.
Wood: Wood fuel in accordance with Annex 5, c. 31, para. 1, OPair;
D.
Gas: Fuel and gaseous fuel in accordance with Annex 5, c. 41, para. 1, OPair;
E.
Instrument for measuring effluents by oil and gas heaters: Portable measuring apparatus, to determine at least one of the effluent measurement quantities by the following oil and gas heating plants:
1.
Volumic concentration in gaseous components of a sample of the effluent by a heating plant in a wet environment,
2.
Soot content (soot index),
3.
Temperature of off-gases and oxidizing air for the calculation of losses from off-gases;
F.
Instrument for measuring effluent by wood heating: Portable measurement device, to determine the average volume concentration of carbon monoxide and oxygen in a sample of the effluent from dynamically used wood heating plants in a wet environment;
G.
Volume concentration in gaseous components: The volumetric concentrations of gaseous components, expressed in mL/m 3 , ppm (parts per million) or cent;
H.
Soot index: The rate of blackening of a filter paper by particulate matter in the off-gases. This rate is obtained by the calculation of the soot index using an empirical comparison scale;
I.
Reference gas: Certified gas mixture from an accredited manufacturer, used in the measurements for verification and control purposes.

1 RS 814.318.142.1

Section 2 Effluent measurement instruments by oil and gas heating plants

Art. 4 Basic Requirements

The effluent measuring instruments by oil and gas heating plants shall meet the basic requirements in accordance with Schedule 1 of the Order on Measurement Devices and Schedule 1 of this Order.

Art. 5 Procedure for placing on the market

Instruments for the measurement of effluents by oil and gas heating plants shall be subject to regular approval by the Federal Institute of Metrology (METAS) 1 And an initial verification, in accordance with Annex 5 of the Ordinance on Measuring Instruments issued by METAS or an authorized verification laboratory.

1 The designation of the administrative unit has been adapted to 1 Er Jan 2013 under Art. 16 al. 3 of the O of 17 Nov 2004 on Official Publications (RS 170.512.1 ). This mod has been taken into account. Throughout the text.

Art. 6 Procedure for maintaining the stability of measures

1 Instruments for the measurement of effluents by oil and gas heating plants shall comply with the following procedures to ensure the stability of the measures:

A.
Annual verification, by METAS or an authorized verification laboratory, in accordance with Annex 7, c. 1, of the Ordinance on Measuring Instruments and Schedule 2, c. 1, of this order;
B.
Annual maintenance by a competent person in accordance with Annex 7, c. 7, of the Ordinance on Measuring Instruments and Schedule 2, c. 2, of this order; and
C.
Annual adjustment by a competent person in accordance with Annex 7, c. 8, of the Ordinance on Measuring Instruments and Schedule 2, c. 3, of this Order.

2 METAS may shorten or lengthen the time limits for certain models of a specific manufacturer, where the metrological properties of the measuring instruments used allow or require it.

Section 3 Measuring Instruments for Effluents by Wood Heating Facilities

Art. 7 Basic Requirements

Instruments for the measurement of effluents by woodburning facilities shall meet the basic requirements in accordance with Schedule 1 of the Order on Measurement Devices and Schedule 3 of this Order.

Art. 8 Procedure for placing on the market

Instruments for the measurement of effluents by woodburning installations shall be subject to regular approval, issued by METAS, and an initial verification in accordance with Annex 5 of the Ordinance on Instruments of Measure, delivered by METAS or by an authorized audit laboratory.

Art. Procedure for maintaining the stability of measures

1 The following procedures shall be followed to ensure the stability of the measures for the measurement of the effluent by the wood heating system:

A.
Annual verification, by METAS or an authorized verification laboratory, in accordance with Annex 7, c. 1, of the Ordinance on Measuring Instruments and Schedule 4, c. 1, of this order;
B.
Annual maintenance by a competent person in accordance with Annex 7, c. 7, of the Ordinance on Measuring Instruments and Schedule 4, c. 2, of this order; and
C.
Annual adjustment by a competent person in accordance with Annex 7, c. 8, of the Ordinance on Measuring Instruments and Schedule 4, c. 3, of this Order.

2 METAS may shorten or lengthen the time limits for certain models of a specific manufacturer, where the metrological properties of the measuring instruments used allow or require it.

Section 4 Final provisions

Art. 10 Transitional provisions

1 The initial verification of the effluent measuring instruments by oil and gas heaters whose model has been approved under the old right shall be carried out by METAS or by an authorized verification laboratory in accordance with the Maximum permissible errors and requirements as defined by the former right.

2 The instruments for measuring the effluents by oil and gas heaters that have been placed on the market in accordance with the old right may be subject to further verification, without limitation in time, in accordance with the requirements and The maximum tolerated errors defined by the former right.

Art. 11 Entry into force

This order shall enter into force on 1 Er July 2011.

Annex 1 1

(art. 4)

Specific requirements for effluent measuring instruments by oil and gas heaters

A

Applicable standards

If no specific requirement is specified, the requirements defined by the SN EN 50379-1:2004 standards 2 And SN EN 50379-2:2004 3 Apply.

B

Metrological Requirements

1

Measurement ranges

1.1
Volumetric concentrations for off-gases components

Components (analyte)

Measurement range (min. ... max.)

Carbon Monoxide (CO)

0 to 2000 ppm

Nitrogen Monoxide (NO)

0 to 600 ppm

Oxygen (O 2 )

0 to 21 %

Where applicable, nitrogen dioxide (NO 2 )

0 to 200 ppm

Where applicable, carbon dioxide (CO 2 )

0 to 20 %

1.2
Soot index
-
The soot index is determined in accordance with Annex A of the SN EN 267:2010 (D) 4 . Compressed between 0 and 9, this index is generated by comparison with a scale and is expressed in integers.
-
The volume of off-gases used to determine the soot index is 5.7 dm 3 Under ambient conditions per cm 2 Of filter surface.
1.3
Oxidizing Air and Effluent Temperature
-
The effluent temperature is between 0 and 400 ° C
-
The temperature of the oxidizing air is between 0 and 100 ° C

2

Nominal Operating Conditions

The values of the nominal operating conditions shall be transmitted by the manufacturer as follows:
2.1
For climatic, mechanical and electromagnetic influences:
-
Ambient temperature between + 5 ° C and +40 ° C;
-
Ambient pressure between 860 hPa and 1'060 hPa;
-
Class M1 mechanical environment.
-
Class E2 electromagnetic environment.
2.2
For electrical voltage:
-
Voltage and frequency range for ac power supply;
-
Voltage range in case of dc power supply.

3

Maximum Tolerable Errors

The following maximum tolerated errors apply:
3.1
Volumetric concentrations for off-gases components

Components (analyte)

Tolerable Maximum Deviation

Carbon Monoxide (CO)

± 0.10 ∙display or ± 12 ppm; Most of the values are authentic

Nitrogen Monoxide (NO)

± 0.10 ∙display or ± 10 ppm; Most of the values are authentic

Oxygen (O 2 )

± 0.4 %

Nitrogen dioxide (NO 2 )

± 7 ppm

Carbon dioxide (CO 2 )

± 0.07 ∙display or ± 0.35 %; Most of the values are authentic

3.2
Soot index
The soot index is obtained by comparison with the soot scale in accordance with c. 1.2. The maximum tolerable error is the scale resolution. In case of doubt, the lower soot index is retained. No interpolation is performed.
The maximum permissible error in determining soot volumes is ± 0.4 dm 3 By cm 2 Of the filter surface in ambient conditions.
3.3
Oxidizing Air and Effluent Temperature
Maximum tolerated errors for the temperature of the off-gases are included:
-
Between 0 ° C and 100 ° C ± 3 ° C
-
Between 100 ° C and 200 ° C ± 3 % of the measured value
-
Between 200 ° C and 350 ° C ± 6 ° C
The maximum tolerated errors for the temperature of the oxidizing air are included:
-
Between 0 ° C and 50 ° C ± 3 ° C

4

Special Requirements

4.1
The properties of the effluent measuring instruments should not be altered by additional measurement modules.
4.2
Sealing test: in the case of devices equipped with motor pumps, the waterproofing shall be automatically checked for each placing on service, and at least once a day of operation.
Manual pump: in the case of closed suction lines, the piston of the manual pumps shall return to its initial position after 3 seconds after a stretching of one centimetre.
4.3
Oxidizing air thermometer: the length of the sensor cable should allow a representative sampling of the temperature of the oxidizing air.
4.4
Measurement of soot: resistance to flow due to a change in filter quality or to a significant amount of soot on the filter shall be compensated by the pump in the range of maximum tolerated errors.

1 Update as per c. I 4 of the 7 Dec DFJP O. 2012 (New legal bases in metrology), in force since 1 Er Jan 2013 ( RO 2012 7183 ).
2 SN EN 50379-1:2004, requirements for portable electrical appliances used to measure the combustion parameters of heating installations. Part 1: General requirements and control procedures. The standard can be obtained from the Swiss Standards Association SNV, 8400 Winterthur. It can also be consulted free of charge at the Federal Institute of Metrology, 3003 Berne.
3 SN EN 50379-2:2004, requirements for portable electrical appliances used to measure the combustion parameters of heating installations. Part 2: requirements for the performance of equipment in mandatory measurements and evaluations. The standard can be obtained from the Swiss Standards Association SNV, 8400 Winterthur. It can also be consulted free of charge at the Federal Institute of Metrology, 3003 Berne.
4 SN EN 267:2010 en; "Brûleurs automatics à air blown pour combustible liquids". The text of the standard may be obtained from ' Swiss Standards Association (SNV), 8400 Winterthur; www.snv.ch. The standard may also be consulted free of charge from the ' Federal Institute of Metrology, 3003 Berne-Wabern.

State 1 Er January 2013

Annex 2

(art. 6)

Procedure for maintaining stability of measurements for effluent measuring instruments by oil and gas heaters

1

Subsequent verification

Instruments for the measurement of effluents by oil and gas heaters are verified under laboratory conditions. METAS defines the verification procedure in the individual case.
With respect to the measurement of gases, the following maximum permissible errors shall apply in the context of the verification:

Components (analyte)

Tolerable Maximum Deviation

Carbon Monoxide (CO)

± 0.07 ∙display or ± 8 ppm; Most of the values are authentic

Nitrogen Monoxide (NO)

± 0.07 ∙display or ± 6 ppm; Most of the values are authentic

Carbon dioxide (CO 2 )

± 0.05 ∙display or ± 0.30 %; Most of the values are authentic

For oxygen (O 2 ) And nitrogen dioxide (NO 2 ), the maximum tolerated errors set out in Annex 1, let. B, c. 3 apply.
For the measurement of soot, the maximum tolerated errors as defined in Annex 1, let. B, c. 3.2 apply. For the control of resistance to flow, the tolerance threshold corresponds to 1.5 times the maximum tolerated errors.
For temperature measurements, the maximum tolerated errors set out in Annex 1, let. B, c. 3.3 apply.

2

Maintenance

2.1
In accordance with Annex 1, c. 9.3 of the Ordinance on Measuring Instruments, Information on the Operation of the Instruments of Measurement of Effluents by Heaters contains detailed specific data relating to the maintenance duty of the owner, to all The maintenance work, their periodicity and the proof of their execution.
2.2
All maintenance work in accordance with the operating information shall be carried out in an appropriate manner. The scope of this work and their dates of implementation must be decided.
2.3
All maintenance work must be documented and documented in a maintenance log. This journal shall include, in particular, the identification of the device, the nature of the work performed, the measuring and control instruments used, and the date, name and signature of the person who performed the interview.
2.4
Measuring instruments and control equipment used in the maintenance of effluent measuring instruments by heating systems shall be connected to national standards.

3

Adjust

3.1
The fitting of effluent measuring instruments shall be carried out by a competent person and by a certified reference gas. This mixture of gases shall have a certified relative uncertainty of less than 2 %.
3.2
The manufacturer defines the frequency of the fitting and its procedure in the instructions for use. The adjustment shall be made at least once a year.
3.3
If the model provides for it and the sealing of the effluent measuring instrument should not be violated, sensors may also be adjusted and retrospectively integrated by the user. These sensors shall bear, as a justification for fitting, the identification of the competent person, authorised to ensure the sealing of the measuring instrument.
State 1 Er January 2013

Annex 3

(art. 7)

Specific requirements for effluent measuring instruments by wood heaters

A

Applicable standards

If no specific requirement is specified, the requirements defined by the SN EN 50379-1:2004 standards 1 And SN EN 50379-2:2004 2 Apply.

B

Metrological Requirements

1

Measurement ranges

1.1
Volumetric concentrations for off-gases components

Components (analyte)

Measurement range (min. ... max.)

Carbon Monoxide (CO)

0 to 20 000 ppm

Oxygen (O 2 )

0 to 21 %

2

Nominal Operating Conditions

The values of the nominal operating conditions shall be transmitted by the manufacturer as follows:
2.1
For climatic, mechanical and electromagnetic influences:
-
Ambient temperature between + 5 ° C and +40 ° C;
-
Ambient pressure between 860 hPa and 1'060 hPa;
-
Mechanical environment class M1.
-
Class E2 electromagnetic environment.
2.2
For electrical voltage:
-
Voltage and frequency range for ac power supply;
-
Voltage range in case of dc power supply.

3

Maximum Tolerable Errors

The following maximum tolerated errors apply:
3.1
Volumetric concentrations for off-gases components

Components (analyte)

Tolerable Maximum Deviation

Carbon Monoxide (CO)

± 0.10 ∙display or ± 100 ppm; Most of the values are authentic

Oxygen (O 2 )

± 0.3 %

4

Special Requirements

4.1
The properties of the effluent measuring instruments should not be altered by additional measurement modules.
4.2
Response times specified in SN EN 50379-1:2004 3 Apply to positive changes and abrupt negative changes in volumetric concentration.
4.3
Effluent measurement instruments should allow for the calculation of mean values in a variable range.
Throughout the calculation of the average values, no zeroing should occur.
The measurement frequency for calculating the average values is 1/s.
The calculation of the average values shall not be influenced by more than one third of the maximum errors tolerated by possible commutations of the ranges of measurement.
The calculation of a CO mass concentration relative to an oxygen concentration occurs after the determination of the mean values.
4.4
Gas escaping from the apparatus shall be capable of being removed without affecting the measured values.
4.5
In conclusion of a measurement and before any disconnection, the sensors must be thoroughly cleaned with fresh air.

1 SN EN 50379-1:2004, requirements for portable electrical appliances used to measure the combustion parameters of heating installations. Part 1: General requirements and control procedures. The standard can be obtained from the Swiss Standards Association SNV, 8400 Winterthur. It can also be consulted free of charge at the Federal Institute of Metrology, 3003 Berne.
2 SN EN 50379-2:2004, requirements for portable electrical appliances used to measure the combustion parameters of heating installations. Part 2: requirements for the performance of equipment in mandatory measurements and evaluations. The standard can be obtained from the Swiss Standards Association SNV, 8400 Winterthur. It can also be consulted free of charge at the Federal Institute of Metrology, 3003 Berne.
3 SN EN 50379-1:2004, requirements for portable electrical appliances used to measure the combustion parameters of heating installations. Part 1: General requirements and control procedures. The standard can be obtained from the Swiss Standards Association SNV, 8400 Winterthur. It can also be consulted free of charge at the Federal Institute of Metrology, 3003 Berne.

State 1 Er January 2013

Annex 4

(art. 9)

Procedure for the maintenance of the stability of measurements for the measuring instruments of the effluent by the wood heaters

1

Subsequent verification

Instruments for the measurement of effluents by wood heaters are tested under laboratory conditions. METAS defines the verification procedure in the individual case.
With respect to the measurement of gases, the following maximum permissible errors shall apply in the context of the verification:

Components (analyte)

Tolerable Maximum Deviation

Carbon Monoxide (CO)

± 0.07 ∙display or ± 70 ppm; Most of the values are authentic

For oxygen (O 2 ), the maximum tolerated errors set out in Annex 3, let. B, c. 3 apply.

2

Maintenance

2.1
In accordance with Annex 1, c. 9.3 of the Ordinance on measuring instruments, information on the operation of the effluent measuring instruments shall contain detailed specific data relating to the duty of maintenance of the owner, to all works Of maintenance, at their periodicity and in evidence of their execution.
2.2
All maintenance work in accordance with the operating information shall be carried out in an appropriate manner. The scope of this work and their dates of implementation must be decided.
2.3
All maintenance work must be documented and documented in a maintenance log. This journal shall include, in particular, the identification of the device, the nature of the work performed, the measuring and control instruments used, and the date, name and signature of the person who performed the interview.
2.4
Measuring instruments and control equipment used in the maintenance of effluent measuring instruments shall be connected to national standards

3

Adjust

3.1
The fitting of the effluent measuring instruments shall be carried out by a competent person and by means of a certified reference gas. This mixture of gases shall have a certified relative uncertainty of less than 2 %.
3.2
The manufacturer defines the frequency of the fitting and its procedure in the instructions for use. The adjustment shall be made at least once a year.
3.3
If the model provides for it and the sealing of the effluent measuring instrument should not be violated, sensors may also be adjusted and retrospectively integrated by the user. These sensors shall bear, as a justification for fitting, the identification of the competent person authorised to ensure the sealing of the measuring instrument.
State 1 Er January 2013