R503 blend R-23/13 A1 15 658 12 400 R507A blend R-125/143a A1 4 860 7 345 R508A blend R-23/116 A1 13 419 10 350 R508B blend R-23/116 A1 13 566 10 586 R512A blend R-134a/152a A2 219 726 R513A blend R-1234yf/134a A1 647 1 788 R513B blend R-1234yf/134a A1 ...

R503 were used. The use of these substances is no longer allowed in industrialised countries, but the use of R22 has been extended through transitional periods. However, the European Union also commited to an early phase-out for R22, which was enforced ...