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