German air quality standard
Found on http://www.energ.co.uk/Glossary

TA Luft

Germany has an air pollution control regulation titled `Technical Instructions on Air Quality Control` (Technische Anleitung zur Reinhaltung der Luft) and commonly referred to as the TA Luft. The first version of the TA Luft was established in 1964. It has subsequently been revised in 1974, 1983, 1988 and 2002. Parts of the TA Luft have been ado.....
Found on http://en.wikipedia.org/wiki/TA_Luft
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