18 7820A GC Site Preparation Guide
1 7820A GC Site Preparation
Conversions: 1 psi = 6.8947 kPa = 0.068947 Bar = 0.068 ATM
Notes:
• If you have not requested option 305, you must supply
pre-cleaned, 1/8-inch copper tubing and a variety of 1/8-inch
Swagelok fittings to connect the GC to inlet and detector gas
supplies.
• If you purchased automated valving, the valve actuation
requires a separate pressurized, dry air supply at 380 kPa
(55 psig). This air supply must end in a male fitting
compatible with a 1/4-inch id plastic tube at the GC.
• Never use liquid thread sealer to connect fittings. Never use
chlorinated solvents to clean tubing or fittings.
Carrier
(max)
827 (120) 827 (120)
Carrier (min) (20 psi) above pressure
used in method
Table 10 Delivery pressures required at the GC, in kPa (psig) (continued)
Detector type Inlet type
FID NPD TCD uECD Split/Splitless Purged
packed