- 47 mm glass fiber disks embedded with specialty bonded silica
- Meet requirements for EPA Method 1664.*
- Reduce emulsion formation and amount of solvent required by previous EPA methods
- No chlorofluorocarbons needed
*A sodium sulfate drying tube (cat.# 26207) and a 0.45 µm PTFE syringe filter (cat.# 26145) also may be used.