Table III.

Major components detected in the carpets and their concentrations in the patch test extracts

Substance	Carpet 1 mg/ml	Carpet 1 with glue mg/ml	Carpet 2 mg/ml	Carpet 3 mg/ml	Carpet 4 mg/ml
Bis(2-ethylhexyl) fumaratea  CAS 141-02-6; MW 340	4.26	6.12	3.41	7.35	4.15
Bis(2-ethylhexyl) maleatea  CAS 142-16-5; MW 340	0.32	0.58	0.50	0.57	0.08
N-Methyl-1,2-benzisothiazol-3(2H)-oneb  CAS 2527-66-4; MW 165	0.01	2.2	<0.01	1.9	2.2
N-Methyl-1,2-benzisothiazol-3(2H)-thioneb  CAS 15871-24-6; MW 181	0.01	0.81	<0.01	1.4	0.46
1,8-Diazacyclotetradecane-2,7-dionec  CAS 4266-66-4; MW 226	1.1	0.6	1.1	0.44	0.21
Caprolactamc  CAS 105-60-2; MW 113	<0.003	0.028	0.29	0.006	0.009

^aBis(2-ethylhexyl) fumarate used as reference substance for determination/estimation of concentrations.

^b1,2-Benzisothiazol-3(2H)-one used as reference substance for estimation of concentrations.

^cCaprolactam used as reference substance for determination/estimation of concentrations.

Columns with carpets extracts to which positive patch test reaction were found are in italic.