Gas Requirements And Purity; Cryogen Requirements - Micromeritics TRISTAR II PLUS Operator's Manual

1 Analyzer Components for TriStar II Plus
G R
AS EQUIREMENTS AND
Improper handling, disposing of, or transporting potentially hazardous materials can
cause serious bodily harm or damage to the instrument. Always refer to the SDS
when handling hazardous materials. Safe operation and handling of the instrument,
supplies, and accessories are the responsibility of the operator.
Compressed gases are required for analyses. Gas cylinders or an outlet from a central source
should be located near the analyzer.
Appropriate two-stage regulators which have been leak-checked and specially cleaned are
required. Pressure relief valves should be set to no more than 30 psig (200 kPag). All gases
should be of a purity listed below. Gas regulators can be ordered from Micromeritics. Parts and
accessories are located on the
Gas
(CGA 580) N
2
(CGA 580) He
(CGA 580) Kr
C R
RYOGEN EQUIREMENTS
Liquid nitrogen is commonly used as the cryogen to cool the sample during analysis. A liquid
nitrogen transfer system eliminates the need to pressurize storage Dewars. The Model 021 liquid
nitrogen transfer system is available from Micromeritics (www.micromeritics.com).
Improper handling, disposing of, or transporting potentially hazardous materials can
cause serious bodily harm or damage to the instrument. Always refer to the SDS
when handling hazardous materials. Safe operation and handling of the instrument,
supplies, and accessories are the responsibility of the operator.
1 - 6
P
URITY
Micromeritics web page.
Purity
99.999%
99.999%
99.995% (Required for krypton units only)
TriStar II Plus Operator Manual
303-42800-01 (Rev M ) — Sep 2023