In this episode, we answer the following questions:
- How do we know when we need to ground and bond?
- Do I need to wear a PASS alarm inside my Level A?
- What are the differences between American and Mexican placards and labels?
- Can I use knee pads on my Level A suit?
Complete Show Notes
00:45 Question #1 – How Do We Know When We Need to Ground and Bond?
- Questions to consider:
- What’s the ambient temperature?
- Do we have a foam line stretched and ready?
- Do we have manpower with the proper training?
- Do we have proper PPE and equipment?
- Do we have the right amount of containment?
- Do we really need to move the substance?
- What’s the quantity?
- Can we use pads?
- Where’s the rig in relation to openings on the street (like manholes and storm drains)?
- Where’s the leak specifically coming from?
- Where’s the rig specifically located?
- Which fuel are you dealing with?
- Always be aware of temperature, humidity, and dew point – these factors can have a major effect on whether you need to ground and bond
- Ultimately, though, you have to follow your department’s SOPs
3:45 Question #2 – Do I Need to Wear a PASS Alarm Inside My Level A?
- Standard requiring you to wear a PASS alarm within your structural gear comes from the fire grounds
- Most firefighters going on-scene wear PASS alarms due to the standard their SCBA falls under
- However, there’s a whole group of responders in industry who aren’t required to wear them because their SCBA falls under a different standard
- If you pull the PASS alarm out, it doesn’t necessarily mean the SCBA defaults to a different standard – just means that specific pack doesn’t fall under an NFPA standard
- From an NFPA point of view, a mask with a disabled PASS alarm isn’t really covered by any standards
- Tampering with an SCBA can make you civilly or criminally liable if somebody gets hurt
8:35 Question #3 – What Are the Differences Between American & Mexican Placards and Labeling?
- Mexico doesn’t use the “Dangerous” placard or label on their transports as per NOM-004 (their regulations
- Products are listed in both Spanish and English on packing slips, even though regulations say the proper shipping name has to be in Spanish
- They also can’t use the hot placard to identify something that’s hot – same applies in Canada
- Mexico also doesn’t have to use a marine pollutant marking
- Placarding is required for sewer products, but not for ORM-Ds
- They also don’t distinguish between flammable and combustible liquids
10:15 Question #4 – Can I Use Knee Pads on My Level A Suit?
- Any time you add something to your ensemble, you pretty much void the standard if it hasn’t been approved for use with that product
- Keep in mind that knee pads can cause the material to wear out via friction since you’re walking around a lot – this creates an area where chemicals can penetrate
- Mike recommends kneeling on acid or oil pads – provides comfort without violating the standard or damaging your Level A
- You should also be careful about wearing knee pads inside your Level A since the hard material on the knee pads can abrade the suit when it’s pushed against the ground
Have a question? Send an email to firstname.lastname@example.org or leave a message on our Haz Mat Guys comment hotline: 843-628-1484
- THMG041: Grounding and Bonding, Part I
- THMG078: Placards and Labels, Part I
- THMG039: PPE Selection Secrets, Part I