Sentences with phrase «for halons»

ICI has been trying to develop substitutes for halons 1211 and 1301.

There is no easy substitute for halons in fire fighting, a seminar organised by the Civil Aviation Authority was told last week.

Not exact matches

Bromotrifluoromethane (CF3Br, or halon 1301) is a close cousin to halon 1211, but has a much lower boiling point and toxic level — properties that have made halon 1301 the firefighting chemical of choice for applications where sprinklers can not be used.

France, Britain and Belgium all argued that they should be allowed to continue to make some halons, claiming they are needed for the new generation of trains designed to run through the Channel Tunnel.

These properties made halons an ideal choice for protecting computers, archives and works of art.

In confined spaces where firefighting chemicals have to be swift - acting but non-toxic, halon - 1301 will continue to be needed for a long time.

«It would be a tragedy for the world to gather up and destroy all the halons and then have to come back a couple of years later and restart production to supply airlines and the military,» says Taylor.

EU ODS Regulations * No change to halon critical use list but EC chaired regulatory committee given authority to change the list and / or set time limits * DG Environment proposal contains the following end dates for aviation critical uses o Cargo compartment fixed systems — can not be installed on new aircraft after 2015, end of critical use exemption is 2030 o Cabin / crew compartment portables — 2010, 2015 o Engine nacelles and APU — 2010, 2030 o Lavatory (potty bottles)-- 2008, 2015 o Dry bays — 2010, 2030; Inert fuel tanks — 2008, 2030

Summary for Policymakers Technical Summary Chapter 1 Ozone and Climate Chapter 2 Chemical and Radiative Effects of HFCs, PFCs, and Their Possible Replacements Chapter 3 Methodologies Chapter 4 Refrigeration Chapter 5 Residential and Commercial Air Conditioning and Heating Chapter 6 Mobile Air Conditioning Chapter 7 Foams Chapter 8 Medical Aerosols Chapter 9 Fire Protection Chapter 10 Non-medical Aerosols, Solvents and HFC - 23 Chapter 11 Current and Future Supply, Demand and Emissions of HFCs and PFCs, plus Emissions of CFCs, Halons

Replacements for HCFCs, methyl bromide, and halons are still being sought, and studies of the new compounds must continue.

Other classes of GHGs are included in the Montreal Protocol for Substances that Deplete the Ozone Layer and its subsequent amendments and are the chlorofluorocarbons (CFCs), halons, and chlorine - and bromine - containing (halogenated) solvents (methyl chloroform (CH3CCl3), carbon tetrachloride (CCl4), bromochloromethane (CH2BrCl), etc.).

There are no perfect replacements for either the fire extinguishing agents (halons) or fumigants (methyl bromide).