TABLE VIII

Analysis of Particulates Isolated from pH 12 Extracts of the Elastomer Materials

Sample ID	Stereomicroscopic Examination	Elements¹	FT-IR	Material Identification
B1	Colorless to white, translucent flocculent over the entire membrane	Na^, Si^, K, O	Polydimethylsiloxane and sodium stearate	Mixture of silicone oil and sodium stearate
E2	Colorless to white, translucent flocculent on isolated areas on the membrane.	Na^*, Si, K, O	Polydimethylsiloxane and sodium stearate	Mixture of silicone oil and sodium stearate
E3	Thin layer of colorless, transparent, flocculent material	Ca^*, Na, O	Calcium stearate	Calcium stearate
E4	Colorless to white, translucent flocculent over the entire membrane	Na	Sodium stearate	Sodium stearate
E5	Colorless to white, translucent flocculent over the entire membrane	Na^*	Sodium stearate	Sodium stearate
E6	Colorless to white, translucent flocculent on isolated areas on the membrane	Na^, Si^	Polydimethylsiloxane and sodium stearate	Mixture of silicone oil and sodium stearate
Control	Heterogeneous, environmentally sourced particulates	N/A²	N/A	N/A

↵1 Detected by EDXS. Elements are listed in approximate order of decreasing concentration.
↵2 N/A = not applicable.
↵* Marked elements were present at moderate levels. The remaining elements were present at low levels.