Extinguishing agents Besluit toezicht luchtvaart BES
9.2.8 Both principal and complementary agents shall normally be provided at an aerodrome.
Note – Descriptions of the agents may be found in the Airport Services Manual, Part 1.
9.2.9 The principal extinguishing agent shall be:
a) a foam meeting the minimum performance level A; or
b) a foam meeting the minimum performance level B; or
c) a combination of these agents;
except that the principal extinguishing agent for aerodromes in categories 1 to 3 shall preferably meet the minimum performance level B.
Note – Information on the required physical properties and fire extinguishing performance criteria needed for a foam to achieve an acceptable performance level A or B rating is given in the Airport Services Manual, Part 1.
9.2.10 The complementary extinguishing agent shall be a dry chemical powder suitable for extinguishing hydrocarbon fires.
Note 1 – When selecting dry chemical powders for use with foam, care must be exercised to ensure compatibility.
Note 2 – Alternate complementary agents having equivalent fire fighting capability may be utilized. Additional information on extinguishing agents is given in the Airport Services Manual, Part 1.
9.2.11 The amounts of water for foam production and the complementary agents to be provided on the rescue and fire fighting vehicles shall be in accordance with the aerodrome category determined under 9.2.3, 9.2.4, 9.2.5, 9.2.6 and Table 9-2, except that these amounts may be modified as follows:
a) for aerodrome categories 1 and 2 up to 100 per cent of the water may be replaced by complementary agent; or
b) for aerodrome categories 3 to 10 when a foam meeting performance level A is used, up to 30 per cent of the water may be replaced by complementary agent.
For the purpose of agent substitution, the following equivalents shall be used:
1 kg complementary agent = 1.0 L water for production of a foam meeting performance level A
1 kg complementary agent = 0.66 L water for production of a foam meeting performance level B
Note 1 – The amounts of water specified for foam production are predicated on an application rate of 8.2 L/min/m2 for a foam meeting performance level A, and 5.5 L/min/m2 for a foam meeting performance level B.
Note 2 – When any other complementary agent is used, the substitution ratios need to be checked.
9.2.12 The quantity of foam concentrates separately provided on vehicles for foam production shall be in proportion to the quantity of water provided and the foam concentrate selected.
9.2.13 The amount of foam concentrate provided on a vehicle shall be sufficient to produce at least two loads of foam solution.
9.2.14 Supplementary water supplies, for the expeditious replenishment of rescue and fire fighting vehicles at the scene of an aircraft accident, shall be provided.
9.2.15 When both a foam meeting performance level A and a foam meeting performance level B are to be used, the total amount of water to be provided for foam production shall first be based on the quantity which would be required if only a foam meeting performance level A were used, and then reduced by 3 L for each 2 L of water provided for the foam meeting performance level B.
9.2.16 The discharge rate of the foam solution shall not be less than the rates shown in Table 9-2.
9.2.17 The complementary agents shall comply with the appropriate specifications of the International Organization for Standardization (ISO).*
9.2.18 The discharge rate of complementary agents shall be selected for optimum effectiveness of the agent.
9.2.19 A reserve supply of foam concentrate and complementary agent, equivalent to 200 per cent of the quantities of these agents to be provided in the rescue and fire fighting vehicles, shall be maintained on the aerodrome for vehicle replenishment purposes. Where a major delay in the replenishment of this supply is anticipated, the amount of reserve supply shall be increased.
- Regeling
- Besluit toezicht luchtvaart BES
- Soort
- AMvB-BES
- Geldend vanaf
- 01-01-2021
- BWB-id
- BWBR0028721
- Versie
- 2021-01-01_0