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Table 1 As part of the European baseline series (EBS) of haptens (contact allergens), 29 substances, prepared at different concentrations (conc.) in either a petrolatum (pet.) or aqueous (aq.) base (veh. = vehicle), are applied to the patient’s upper back in the form of a standardized commercially available patch test set

From: The role of antibiotic-loaded bone cement in complicated knee arthroplasty: relevance of gentamicin allergy and benefit from revision surgery — a case control follow-up study and algorithmic approach

European baseline series Allergen Conc. Veh. Readings
  Potassium dichromate 0.5% pet. D2, D3, D6
Thiuram mix 1.0% pet. D2, D3, D6
Cobalt(II) chloride 1.0% pet. D2, D3, D6
Myroxylon pereirae 25% pet. D2, D3, D6
Colophonium 20% pet. D2, D3, D6
N-isopropyl-N -phenyl-p-phenylenediamine 0.1% pet. D2, D3, D6
Lanolin alcohol 30% pet. D2, D3, D6
Mercapto mix 1.0% pet. D2, D3, D6
Epoxy resin 1.0% pet. D2, D3, D6
Nickel(II) sulfate 5.0% pet. D2, D3, D6
p-tert-Butylphenol formaldehyde resin 1.0% pet. D2, D3, D6
Formaldehyde 1.0% aq. D2, D3, D6
Fragrance mix I 8.0% pet. D2, D3, D6
Turpentine 10% pet. D2, D3, D6
Methylchloroisothiazolinone/methylisothiazolinone 100 ppm aq. D2, D3, D6
Paraben mix 16% pet. D2, D3, D6
Cetearyl alcohol 20% pet. D2, D3, D6
Zinc diethyldithiocarbamate 1.0% pet. D2, D3, D6
Methyldibromo glutaronitrile 0.2% pet. D2, D3, D6
Propolis 10% pet. D2, D3, D6
Bufexamac 5.0% pet. D2, D3, D6
Compositae mix II 5.0% pet. D2, D3, D6
Mercaptobenzothiazole 2.0% pet. D2, D3, D6
Hydroxyisohexyl 3-cyclohexene carboxaldehyde 5.0% pet. D2, D3, D6
2-Bromo-2-nitropropane-1,3-diol 0.5% pet. D2, D3, D6
Fragrance mix II 14% pet. D2, D3, D6
Ylang Ylang (I + II) oil 10% pet. D2, D3, D6
Sandalwood oil 10% pet. D2, D3, D6
Jasmine absolute 5.0% pet. D2, D3, D6