| PPO/HIPS
Regulations |
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| • | Articles 177.1810
and 177.2460 |
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| • | PS: molecular
weight > 29,000 and soluble in toluene |
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| • | Maximum
extractable fractions of chloroform in |
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| distilled water
and 50% ethanol are 0.0039 mg/cm2 |
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| • | PPO: intrinsic
viscosity > 0.30 deciliter/gram |
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| • | < 0.02 weight percent extractable with
n-heptane |
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