Using Hydrogen; Leak Test - Thermo Scientific EA IsoLink IRMS System Operating Manual

Sulfur dioxide is s colorless gas with a distinctive pungent odor that will alert the user of a leak in ample
time before irritation can occur. It is somewhat denser then air and will sink to low-lying spaces.
Because of the density and expansion factors, never place sulfur dioxide containers in direct sunlight or
exposed to other direct or indirect heating sources.
Sulfur dioxide is corrosive to many common metals and other substances.

Using Hydrogen

CAUTION The use of hydrogen requires the operator's strict attention and compliance with special
precautions due to the hazards involved. The use of an H
recommended.
Hydrogen is a dangerous gas, particularly in an enclosed area when it reaches a concentration
corresponding to its lower explosion level (4% in volume). When mixed with air it can create an
explosive mixture.
Use the following safety precautions when using hydrogen:
• Ensure that the hydrogen cylinder complies with the safety requirements for proper use and
storage. Hydrogen cylinders and delivery systems must comply with local regulations.
• Make sure the gas supply is turned completely off when connecting hydrogen lines.
• Perform a bubble test to ensure that the hydrogen lines are leak-tight before using the instrument as
described in the paragraph
bubble test.

Leak Test

Before starting the system, a leak check has to be performed as described in the following
a leak check,"
 Performing a leak check
Figure 6.
Thermo Scientific
"Leak Test."
operating sequence.
Gas Cylinder
1
Getting Familiar with your EA IsoLink IRMS System for CNSOH
detector with an alarm is strongly
2
Avoid spraying any electrical components during the
Main valve
Manometer
On/Off valve
Reducing valve
Gas cylinder
EA IsoLink IRMS System for CNSOH Operating Manual
Use of Gases
"Performing
9