In this section, our president Bob Henderson answers questions about gas detection, writes technical articles on specific topics, and provides useful tips and guidance on our fixed gas detection systems and portable gas detectors.

If you also have a question, just write us: info@goodforgas.com

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Question: To which standard(s) are GfG portable gas-detection instruments certified?

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Question: After leaving an area where a reading has occurred, what procedures should be followed?

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Question: Can the LEL sensors in the GfG instruments detect gasoline and kerosene? And can they measure the vapors of these petroleum derivatives?

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Question: Parts-per-million or percent by volume measurements versus percent LEL measurements.

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Question: Which detection instrument do you recommend to determine the concentration of bacteria present in the air?

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Question: We have both CO₂ and HF produced in our process and also need to detect SO₂, how do we rule out any interfering gases?

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Question: If using a detector with an EC sensor for CO, will calibrating it using Nitrogen instead of air as Zero Gas affect the sensitivity of CO for this electrochemical sensor?

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Question: Can hydrogen have an effect on CO readings, and can downloading the data help determine what’s going on?

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Question: Is an LEL sensor dependable in an H₂S LEL environment?

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Question: What hazardous gases are associated with lead acid battery charging stations?

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Question: Why is the ammonia in the calibration cylinder odorless?

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Question: Detecting semi-conductor gases like SiCl₄ & GeCl₄ & GeCl₂?

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Question: Why do readings for H₂S & NO₂ go up when I breathe on the G460 sensors?

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Question: Why is hydrogen such a big issue for CO sensors?

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Question: What is the best concentration of calibration gas to use for instruments and for bump tests?

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Question: What could cause a negative reading on a CO sensor?

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Question: Can Alcohol vapors affect electrochemical CO sensors?

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Question: What are manufacturer requirements for performing a daily bump test?

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Question: Fluctuating or negative readings from a chlorine dioxide (ClO₂) sensor?

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Question: What are TLVs^® & Why do They Matter?

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