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Is My Drywall Chinese? - HB Litigation Conferences

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<strong>Chinese</strong> <strong>Drywall</strong> Analysis<br />

( incomplete to date—14 date 14 samples)<br />

Strontium (12 samples 5-10 5 10 x > US drywall)<br />

(1 sample 4.8 x > US drywall) (1 sample<br />

2.0 x > US drywall)<br />

Strontium<br />

Carbon Disulfide (8 of 14 samples)<br />

Iron sulfide (12 of 14 samples)<br />

Strontium Sulfide (14 of 14 samples)<br />

Bismuth (1 of 14 samples)<br />

(Boston Chemical Data Corp, Marco Kaltofen)<br />

EPA <strong>Chinese</strong> <strong>Drywall</strong> Analysis<br />

Detected in <strong>Chinese</strong> <strong>Drywall</strong>:<br />

Sulfur (not detected in US drywall)<br />

Strontium—2,570 Strontium 2,570 ppm and 2,670 ppm (compared to<br />

244-1,130 244 1,130 ppm in US drywall)<br />

Iron—1,390 Iron 1,390 ppm and 1.630 ppm<br />

(compared to 841-3,210 841 3,210 ppm in US drywall)<br />

In addition, two organic compounds that are<br />

associated with acrylic paints were detected in<br />

<strong>Chinese</strong> <strong>Drywall</strong><br />

(not detected in the US drywall)

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