Table 6. Residual levels of PA cyclic monomers and oligomers in PA kitchen utensils.

Articles	Material type	PA6 cyclic monomer and oligomers							PA66 cyclic monomer and oligomers				Total	PA6:PA66
		Monomer	Dimer	Trimer	Tetramer	Pentamer	Hexamer	Subtotal	Monomer	Dimer	Trimer	Subtotal
Ladle 1	6	4.8	2.8	2.8	4.6	2.8	1.4	19	0.11	0.088	0.063	0.26	19	99:1
Sesame grinder	6	3.7	0.8	1.6	5.0	2.8	1.3	15	ND	ND	ND	ND	15	100:0
Turner 1	66	0.026	0.013	0.019	0.040	0.011	0.008	0.11	5.4	5.3	3.2	14	14	1:99
Turner 2	66	0.003	ND	ND	ND	ND	ND	0.003	4.7	4.5	3.9	13	13	0:100*
Turner 3	66	ND	ND	ND	ND	ND	ND	ND	4.4	4.4	3.7	13	13	0:100*
Turner 4	66	0.056	0.002	ND	ND	ND	ND	0.057	4.8	4.9	3.9	14	14	0:100*
Turner 5	66	0.086	0.006	0.033	0.060	0.016	0.021	0.22	3.0	3.0	2.9	8.9	9.1	2:98
Turner 6	66	0.004	ND	ND	ND	ND	ND	0.004	2.8	3.2	3.2	9.1	9.1	0:100*
Turner 7	66	0.025	0.005	0.012	0.029	0.010	0.009	0.091	4.7	4.8	4.2	14	14	1:99
Turner 8	66	0.062	0.025	0.041	0.088	0.026	0.024	0.27	6.7	6.7	6.2	20	20	1:99
Turner 9	66	ND	ND	ND	ND	ND	ND	ND	5.2	5.3	3.4	14	14	0:100*
Ladle 2	66	ND	ND	ND	ND	ND	ND	ND	5.3	5.5	4.3	15	15	0:100*
Ladle 3	66	0.029	0.005	0.015	0.030	0.011	0.007	0.096	2.7	2.6	2.4	7.7	7.8	1:99
Ladle 4	66	0.011	ND	ND	ND	ND	ND	0.011	3.5	3.4	1.9	8.9	8.9	1:99
Ladle 6	66	0.12	0.010	0.025	0.050	0.018	0.016	0.24	3.6	4.4	4.2	12	12	2:98
Ladle 7	66	0.023	0.005	0.011	0.027	0.009	0.009	0.083	5.2	5.3	4.6	15	15	1:99
Ladle 8	66	0.033	0.006	0.013	0.031	0.010	0.009	0.10	2.8	2.8	2.3	7.9	8.0	1:99
Ladle 9	66	0.059	ND	ND	ND	ND	ND	0.059	6.0	5.9	4.6	16	17	0:100*
Ladle 10	66	0.064	ND	ND	ND	ND	ND	0.064	4.7	4.3	3.4	12	12	1:99
Ladle 5	6/66	1.2	0.51	0.60	1.3	0.87	0.58	5.0	1.6	2.1	2.4	6.1	11	45:55
Turner 10	6/66	0.63	0.43	0.27	0.80	0.48	0.23	2.8	3.5	3.7	3.2	10	13	22:78
Cake server	6/66	1.6	0.32	0.52	1.4	0.82	0.45	5.1	3.7	3.9	3.8	11	17	31:69
Cake scraper	6/66	0.74	0.11	0.28	0.58	0.23	0.10	2.1	4.2	4.1	3.7	12	14	15:85

Each value (mg/g) is the mean of two trials.

ND: < 0.002 mg/g

*0:100: PA6 ratios below 0.4.