Agilent Technologies 5975 - Manual (Page 31)

Site Preparation
Site Preparation Guide 31
Carrier and Reagent Gas Requirements
Table 6 lists the specifications for the carrier and reagent gases. Pressures and
flows are as measured at the bulkhead fittings on the back of the instrument,
not at the gas supply. We recommend that additional shut-off valves be
installed near the instruments.
Table 6 Carrier and reagent gas requirements
Purity Typical pressure range,
kPa (psi) Typical flow, mL/min
Helium (required) 99.9995% or better and
hydrocarbon-free 345 to 550 (50 to 80) 20 to 50 (column and split flow)
Methane reagent gas
(required for CI operation) Research or SFC grade,
99.999%
103 to 172 (15 to 25) 1 to 2
Isobutane reagent gas
(optional) Instrument grade,
99.99%
103 to 172 (15 to 25) 1 to 2
Ammonia reagent gas
(optional) Research or SFC grade,
99.9995% 34 to 55 (5 to 8) 1 to 2
Carbon dioxide reagent gas
(optional) SFC Grade,
99.995%
103 to 138 (15 to 20) 1 to 2
WA R N I N G
Methane is flammable and ammonia is corrosive and toxic. Read and follow the
safety information that comes with the gases.
5975 Series Site Prep.book Page 31 Thursday, January 31, 2008 9:47 AM