Sample interview questions: Are you knowledgeable about gas system odorization requirements and techniques?
Sample answer:
Yes, I am knowledgeable about gas system odorization requirements and techniques.
Odorization Requirements:
- In most jurisdictions, natural gas must be odorized to a level detectable by the human nose at concentrations below the lower explosive limit (LEL).
- The specific odorization requirements vary depending on the jurisdiction and applicable codes, such as ISO 6517, ISO 13686, and ANSI/AGA NG-18.
Odorization Techniques:
- Sulfur-based odorants: Mercaptans, such as ethyl mercaptan and tert-butyl mercaptan, are commonly used for odorization. They are injected into the gas stream in small quantities to achieve the desired odor level.
- Non-sulfur-based odorants: In areas where mercaptans are prohibited, alter… Read full answer
Source: https://hireabo.com/job/12_0_12/Gasfitter