TABLE VII

C. Concentrations of Trace Elements Extracted from the Elastomer Materials¹

Test Article	Extract pH	Extracted Concentration of the Element, μg/mL^¹,²
Test Article	Extract pH	Ba	Ca	Mg	Sr	Zn	Zr
E1	2	3.41	0.20	0.02	0.07	2.43	<LQD
	Neutral	0.88	0.06	0.01	0.02	0.29	<LQD
	12	<LQD	0.60	0.03	≤C	0.05	≤C
E2	2	0.020	0.08	0.30	<0.01	0.02	<LQD
	Neutral	<LQD	0.06	0.11	<LQD	0.01	<LQD
	12	≤C	≤C	≤C	<LQD	0.01	≤C
E3	2	<LQD	0.02	0.03	<LQD	0.01	<LQD
	Neutral	<LQD	≤C	<0.01	<LQD	<LQD	<LQD
	12	≤C³	0.19	<0.01	≤C	<LQD	≤C
E4	2	<LQD	0.15	1.43	<LQD	0.03	<LQD
	Neutral	<LQD	0.06	0.30	<LQD	0.01	<LQD
	12	≤C	≤C	≤C	≤C	<LQD	≤C
E5	2	<LQD	0.06	0.27	<LQD	0.10	<LQD
	Neutral	<LQD	0.04	0.10	<LQD	0.05	<LQD
	12	≤C	≤C	<0.01	≤C	0.03	≤C
E6	2	0.014	0.09	0.30	<LQD	0.02	<LQD
	Neutral	<LQD	0.03	0.06	<LQD	0.01	0.03
	12	≤C	≤C	≤C	≤C	0.01	≤C

↵1 Extracted concentration + concentration in extract − concentration in control.
↵2 Mean concentrations of two replicates per material.
↵3 ≤C = Concentration in extract was less than or equal to the concentration in the control.