Dual Stainless Steel Fitted Bags
231 and 237 Series Sample Bags
Operating Instructions
863 Valley View Road, Eighty Four, PA 15330 USA
Tel: 724-941-9701 • www.skcinc.com
The 231 and 237 Series sample bags feature dual stainless steel
fi
tt
ings – an inlet
valve for
fl
ushing and
fi
lling and a septum
fi
tt
ing for removing samples.
Guidelines for Bag Sampling
1. Ensure that the bag material and
fi
tt
ings are appropriate for the compounds
to be sampled.
2. Use only PTFE tubing to connect the sample bag to the pump to prevent sample
loss by adsorption on tubing walls.
3. Before using,
fl
ush the bag thoroughly with puri
fi
ed air or nitrogen.
4. Analyze the sample within 24 to 48 hours. Long-term storage of air-contaminant
mixtures in bags is not recommended.
5. Do not ship sample bags by air unless the cargo cabin is pressurized.
Notes and Cautions
• Maximum Operating Temperature —
Do not exceed these speci
fi
cations:
• 231 Series Bags:
225 F (107 C) due to
fi
tt
ing O-ring temperature rating
• 237 Series Bags:
140 F (60 C) due to the SamplePro
®
FlexFilm bag material
temperature
rating
• Do not use sample bags to sample compounds with boiling points > 249.8 F (121 C).
• SKC sample bags are designed for sampling air at atmospheric pressure only. A
tt
empting
to pressurize the bag can result in bag rupture and sample loss. Do not ship bag samples
by air freight in a non-pressurized cargo cabin. Bags can burst under such conditions.
• All federal and state packaging and transporting regulations apply.
• SKC bag
fi
tt
ing valves are extremely durable but are not intended for use as handles or
hanging devices. This type of handling may damage the seal, causing leakage. This is
considered to be misuse and will void the SKC warranty.
• Failure to follow warnings and cautions voids any warranty.
• Sample bags are designed for single use only.
