Table 1.

Concentration of allergens used for SPT and BAT

Allergen	Concentration of the allergen
	SPT	BAT
Cat pelt	10,000 BAU/ml	100 BAU/ml
Dog epithelium	1:20	1:2000
Dermatophagoides pteronyssius (DP)	1000 AU/ml	100 AU/ml
Dermatophagoides farinae (DF)	1000 AU/ml	100 AU/ml
Alternaria	1:10	1:1000
Hormodendrum/Cladosporium	1:10	1:1000
Timothy grass pollen	100,000 AU/ml	1000 AU/ml [BAT]
Short ragweed pollen	1:20	1:2000
Birch tree (Betula verrucosa) pollen	1:20	1:2000