Emerson NGA2000 PMD Manuel D’Utilisation

Page de 88
Instruction Manual 
760007-A 
July 2003 
P-4       Preface                                                                                   Rosemount Analytical Inc.    A Division of Emerson Process Management 
Model NGA2000 PMD
GENERAL PRECAUTIONS FOR HANDLING AND STORING HIGH 
PRESSURE GAS CYLINDERS 
 
Edited from selected paragraphs of the Compressed Gas Association's "Handbook of Com-
pressed Gases" published in 1981 
 
Compressed Gas Association 
1235 Jefferson Davis Highway 
Arlington, Virginia 22202 
 
Used by Permission 
 
 
 
1.  Never drop cylinders or permit them to strike each other violently. 
2.  Cylinders may be stored in the open, but in such cases, should be protected against extremes of 
weather and, to prevent rusting, from the dampness of the ground. Cylinders should be stored in the 
shade when located in areas where extreme temperatures are prevalent. 
3.  The valve protection cap should be left on each cylinder until it has been secured against a wall or 
bench, or placed in a cylinder stand, and is ready to be used. 
4.  Avoid dragging, rolling, or sliding cylinders, even for a short distance; they should be moved by using a 
suitable hand-truck. 
5.  Never tamper with safety devices in valves or cylinders. 
6.  Do not store full and empty cylinders together. Serious suckback can occur when an empty cylinder is 
attached to a pressurized system. 
7.  No part of cylinder should be subjected to a temperature higher than 125
°
F (52
°
C). A flame should 
never be permitted to come in contact with any part of a compressed gas cylinder. 
8.  Do not place cylinders where they may become part of an electric circuit. When electric arc welding, 
precautions must be taken to prevent striking an arc against the cylinder.