What analysis tests are required in the following situations
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I would like to ask the experts here a question: What tests are generally required when conducting fire hazard analysis in flammable gas pipelines or storage tanks? Similarly, what tests need to be carried out before entering such tanks? I’d appreciate hearing from those with experience. Thank you. This post was last edited by ft2489244 on 2008-2-16 at 13:25
1. Hot work on gas pipelines: concentration of flammable gases such as CO, H2, CH4; 2. Hot work analysis in storage tanks: in addition to the analyses mentioned above, it is also necessary to check that the oxygen concentration is above 18%
1. The simplest method is to use an explosion detector to check whether it is within the explosive limit； 2. When entering towers or tanks, a hygiene concentration analysis must be conducted; the concentration of toxic and harmful gases needs to be assessed based on specific circumstances, and it is necessary to meet the specified hygiene concentration standards. **There are regulations regarding this, and in addition to ensuring that toxic and harmful gases are within acceptable levels, it is also important to ensure that the level of inert gases does not become too high
Flame detection analysis: For gas pipelines, determination of the concentration of flammable gases such as CO, H2, CH4; Safety analysis: Oxygen concentration must be above 18%; A permit is required to enter the container; once inside, there must be someone to supervise, and appropriate fire protection and safety measures must be in place.
Our company operates methanol production plants using coke oven gas. At present, most of the tank-entry operations take place during the precision desulfurization process. I would like to ask whether, when entering a tank and performing welding work in an environment with high NH3 levels, there are any other methods besides forced ventilation. Also, is it necessary to analyze CO2 levels? Can welding be carried out in a container with a high H2S concentration if a forced-ventilation gas mask (an Italian-imported set of protective equipment) is worn?