Section 4.4.6.
Measurement and control of fugitive VOC emissions


Subsection 4.4.6.1.
General provisions


Article 4.4.6.1.1.

With the exception of vertical aboveground fixed containers, this Section applies to the process, storage and transshipment installations of:

1

any establishment with annual fugitive emissions in excess of 10 tonnes of VOCs, calculated in accordance with the calculation method in Chapter I of Appendix 4.4.6;

2

any establishment with annual fugitive emissions in excess of 2 tonnes of VOCs, to which one or more of the hazard statements H340, H350, H350i, H360D or H360F are assigned, calculated in accordance with the calculation method in Chapter I of Appendix 4.4.6.

The requirements of the present Section do not apply to activities in establishments stated in Section 59 of the classification list or to refrigeration installations of the type stated in Section 16.3 of the classification list.


Article 4.4.6.1.2.

[...]

The following requirements apply to installations or parts of an installation licensed for the first time on or after 1 January 2009:

1

the description of the installation stated in Article 4.4.6.2.1 must be available upon commissioning of the installation or of a part of the installation;

2

the initial sample survey stated in Article 4.4.6.2.3 must be completed no later than 31 December following the year after commissioning;

3

the first assessment of the annual fugitive emission stated in Article 4.4.6.2.5 must be carried out no later than three months after completion of the initial sample survey.


Article 4.4.6.1.3.

The measurement and management programme in Subsection 4.4.6.2 does not apply to the following equipment:

1

pressurised components;

2

sources in pipes with a diameter of less than 0.5" (12.7 mm) and abatement equipment;

3

technically sealed systems of the type defined in Chapter IV of Appendix 4.4.6.


Subsection 4.4.6.2.
Measurement and Management programme


Article 4.4.6.2.1.

1.

The operator shall implement an annual measurement and management programme to determine and limit fugitive emissions from the establishment.

2.

If the installation is divided into measurement blocks, the measurement and management programme will be implemented in each individual block.

3.

The measurement and management programme shall cover only those systems in the installation which come into contact with:

1

flows of gaseous product consisting of organic compounds at more than 10 percent by volume (excluding methane) with a vapour pressure greater than 0.3 kPa at 20C;

2

flows of liquid product consisting of organic compounds in which the sum of individual component concentrations (excluding methane), with a vapour pressure in excess of 0.3 kPa at 20C, is greater than or equal to 20 percent by weight.

4.

The programme stated in 1 is to consist of the following parts:

1

a description of the establishment consisting of:

a)

a division of the installation into measurement blocks;

b)

a quantification of the number of systems per type as stated in Chapter III of Appendix 4.4.6, documented in a verifiable manner (for example, by process flow diagram);

2

an inventory of systems;

3

a measurement and repair programme;

4

a calculation of the emissions;

5

a report.


Article 4.4.6.2.2.

1.

All systems measured must be counted and documented in a convenient and verifiable manner (for example, by process flow diagram) according to the types stated in Chapter III of Appendix 4.4.6. These counts are to be included in the inventory.

2.

If the measurement value for the system measured exceeds the registration criterion, the following information must be added to the inventory or updated within two months of the measurement:

1

identification of the system: type, location, identification number;

2

name of product;

3

description of the product flow:

a)

gaseous or liquid;

b)

percent by weight of organic compounds (excluding methane; percent by volume in the case of gasses) at a vapour pressure in excess of 0.3 kPa at 20C;

4

date and results of measurements taken;

5

repairs made and date and result of control measurements.


Article 4.4.6.2.3.

1.

The measurement programme stated in Article 4.4.6.2.1 covers the measurement of fugitive emissions from the systems in the establishment or measurement blocks.

2.

This measurement is taken using the measuring method described in Chapter II of Appendix 4.4.6.

3.

The measurements are taken by a laboratory in the discipline of air recognised for these measurements as stated in Article 6, 5, b) of the VLAREL, or by the operator. If the measurements are taken by the operator, equipment and a code of good practice shall be used that have been approved by a recognised laboratory in the discipline of air as stated in Article 6, 5, b) of the VLAREL.

4.

The measurement programme starts with the initial sample survey. The minimum number of systems to be measured per equipment type and product type is expressed as a percentage of the total number of systems and is stated in Chapter III of Appendix 4.4.6. Measurement results may be used in the initial sample survey if they do not pre-date 1 January 2000.

5.

The "modified sample survey" is carried out every year on completion of the initial or modified sample survey and within no later than one year of completing the previous survey. The minimum percentage of systems that must be measured depends on the number of leaking systems from the previous sample survey, as indicated in Chapter III of Appendix 4.4.6. To complement the "modified sample survey", the systems for which the measurement value exceeded the leak criterion in the previous sample survey must always be included again. Each "modified sample survey" is to be set up to ensure that all systems are measured after a minimum number of sample surveys.

6.

The measurement programme stated in 1 can be applied to the installation as a whole or to individual measurement blocks. All measurement blocks are to be identified before the initial sample survey commences and are to represent the installation in its entirety.

7.

For practical reasons, a small number of systems cannot always be accessible for measurement. The number of non-measurable systems is to be kept to a minimum. These systems are to be documented and measured at every opportunity when measurement is possible.


Article 4.4.6.2.4.

If the measurement value for a system exceeds the repair criterion in Chapter III of Appendix 4.4.6, the system in question must be repaired within one month of measurement.

By way of derogation from the first paragraph, the following longer repair periods can be applied:

1

repairs requiring replacement of the system itself or a component thereof must be made within three months of measurement;

2

if a repair cannot be made within the period set in point 1, this must be noted in the report stated in Article 4.4.6.2.5, first paragraph. The following information is to be stated with respect to each system:

a)

the reason why it could not be repaired within the period specified;

b)

the planned repair schedule;

c)

the resultant annual emission.

When a leaking system has been repaired, the repair is to be checked by means of a new measurement within a one-month period. If the repaired system again exceeds the repair criterion, the repair is to be made again within the maximum repair period stated in the first and second paragraphs. This procedure is to be repeated until the measurement value stays below the repair criterion.


Article 4.4.6.2.5.

Annually and no later than 31 March, a reporting document covering the previous year is to be drawn up containing the following information:

1

the division of the installation into measurement blocks;

2

per measurement block and per type of system:

a.

the number of measured points;

b.

the number of leaking systems;

c.

the number of repaired systems;

d.

list of non-repaired systems as stated in Article 4.4.6.2.4, second paragraph, 2;

e.

number of inaccessible points stated in Article 4.4.6.2.3, 7;

f.

the total annual fugitive emission calculated using the calculation method in Chapter V of Appendix 4.4.6.

The document stated in the first paragraph is to be kept archived for a minimum of ten years.