Choosing between methane and pentane for calibrating a direct-reading combustible gas indicator (CGI) depends primarily on your specific application, the target hazards in your environment, and sensor technology constraints. But there are BOTH a “Pentane Advantage” and a “Methane Advantage” Match the Target Gas (Best Practice for Specific Hazards)
When you pump reactive, highly polar, or oxidizing gases like chlorine (Cl2), chlorine dioxide (ClO2), or ammonia (NH3) through standard silicone, polyurethane, or Tygon tubing, the tubing acts like a chemical absorber/scrubber. The gas is actively consumed or trapped by the hose before it ever reaches the instrument’s sensors. This creates severe process safety and
NOTE: Be sure to check your BRAND and MODEL for specifics. I have used MSA devices in this article because they are the brand I have used for 30+ years, and I am a huge fan of their products. ALL brands will have similar restrictions. ATTENTION TO these details matters! Yes, MSA enforces strict maximum
The National Fire Protection Association (NFPA) officially consolidated several legacy respiratory and PPE standards—including NFPA 1981 (open-circuit SCBA) and NFPA 1982 (PASS devices)—into a single unified standard: NFPA 1970. The 2025 edition mandates three (3) primary mechanical and electronic upgrades for all new structural firefighting SCBAs:
The National Institute for Occupational Safety and Health (NIOSH) has finalized Immediately Dangerous to Life or Health (IDLH) profiles and technical analytical standards for major toxic hydrogen halides. These mandates establish airborne exposure limits to guarantee rapid worker escape under acute exposure conditions and dictate strict sampling guidelines for modern industrial hygiene. NIOSH has updated
Employees who refuse to undergo a medical evaluation cannot be assigned to work in areas where they are required to wear a respirator.
In the past 12-months I have been told by three (3) organizations that I can not audit the fit testing records because they are “personal medical records”. After some time, I finally convinced their legal team that fit tests are not medical records, and I was then allowed to audit the records. And of course,
The Respiratory Protection (RP) standard medical questionnaire for 1910.134 will NOT satisfy the HAZWOPER medical surveillance requirement. The intent and requirements for medical surveillance under HAZWOPER are very different from those required by the Respiratory Protection standard. The intent of the HAZWOPER medical surveillance requirements are two-fold:
The proposed OSHA Emergency Response standard is currently in the final review stages. According to OSHA’s most recent Unified Agenda (published in July 2026), the final rule is projected to be published in April 2027. Once finalized, this rule will completely replace the outdated 1980 “Fire Brigades” standard (29 CFR 1910.156) and dramatically expand basic
How do companies follow the emergency response element requirements? To comply with the regulations, a facility needs to develop an emergency program or procedures. These are often contained in one of two types of RMP emergency plans: one for responding facilities and one for non-responding facilities.
This fact sheet summarizes the exercise requirements of the Emergency Response portion of a facility’s Program. It provides guidance for how a facility can comply with existing regulations and what emergency responders can expect from a facility.
OSHA has proposed more than $3.5 million in fines against three (3) companies after federal inspectors determined they failed to protect workers during post-emergency response cleanup after a chemical spill at an industrial facility in Channelview. OSHA initiated three (3) inspections following a Dec. 27, 2025, sulfuric acid spill that resulted in multiple employee injuries.
