11. In 1990, ACGIH adopted a time weighted average Threshold Limit Value of 2ppm for work related skin exposure. 12. Mexico and Brazil are the countries with a higher limit value and Ecuador stays with the lower limit. 13. This current bucket value is then stored in " X "'and compared with the limit value " ? ". 14. Technically, staged combustion and Selective Non-Catalytic NO Reduction ( SNCR ) are applied to cope with the emission limit values . 15. These speed signs all had explicit units, with " km / h " below the circle enclosing the limit value . 16. The American Conference of Governmental Industrial Hygienists has established threshold limit values ( TLVs ) for most of these compounds. 17. Such manipulations can make the limit value of for small clear even though is still not defined at 0 } }. 18. Financial institutions will typically set ( risk ) limit values for each of the Greeks that their traders must not exceed. 19. The American Conference of Governmental Industrial Hygienists publishes a more extensive list of STELs as threshold limit values ( TLV-STEL ). 20. In the United States and some European countries a Threshold Limit Value of 500 parts per million ( Clean Air Act.
