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Does anyone have recommendations for who would perform inspection, testing & maintenance (ITM) on deflagration vents under NFPA 68?
My company is having trouble finding a reputable organization that will take it on. The supplier of the chemical explosion prevention system with has turned down the work. There is a push from some to let our own maintenance handle it, per the checklist in the annex, but I feel that a group with this expertise would be a better fit. Thanks in advance. Sent in anonymously for discussion. Discuss This | Submit Your Question | Subscribe
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I need to label some deflagration vents as "out-of-service" since they are not being maintained properly and are currently not needed from a code standpoint (as the use of the room has changed). We do not want to remove them as the room may be changed back one day depending on research needs.
Does anyone know if there is a code reference that points to the size of the letters or font type for an out-of-service-tag? In this case a tag is not practical since it needs to go on a flat panel. I know there are such requirements for exit and "no exit" signs, but I'm not aware of any code guidance for out-of-service signs. Thanks in advance for any feedback. Submitted anonymously and posted for discussion. Discuss This | Submit Your Question | Subscribe Has anyone seen the International Fire Code Chapters 53 and 58 applied to natural gas installations in addition to the Fuel Gas Code?
IFC Chapter 53 is Compressed Gasses and Chapter 58 is Flammable Gasses. It's technically a gas at standard temperature and pressure with a boiling point below 68 deg F at 14.7 psi and flammable range of 5% to 17% by volume in air. Natural gas appears to be subject to these requirements, but I've never seen it this way in practice. Submitted anonymously and posted for discussion. Discuss This | Submit Your Question | Subscribe We have a closed ammonia refrigeration system for a large cooler/freezer. The refrigeration equipment is located in a separate mechanical room. Total amount of ammonia is less than 10,000 lbs.
My question is explosion control per Section 911 of the International Fire Code required for the refrigeration mechanical room? I am reading different interpretations on whether ammonia is considered a flammable gas, most say it is technically not a flammable gas but can burn and/or explode. I'm interested in hearing everyone's take. Thanks. Submitted anonymously and posted for discussion. Discuss This | Submit Your Question | Subscribe What occupancy type would you consider a building being used for powder coating of metal chassis?
The IBC lists F-2 (Low-Hazard Factory Industrial) as the occupancy for metal fabrication and assembly and basically the fabrication or manufacturing of non-combustible materials in which the processes do not involve a significant fire hazard. Anything not listed as F-2 would be considered F-1 (Moderate-Hazard Factory Industrial). In this building they bring in the metal chassis, send them through an oven to warm them up, then send them through another booth to standblast them. Then the chassis are powder-coated before going through a final oven to be cured. In my opinion and past exeprience with powder coating it can be a pretty hazardous activity with explosive hazard and with finely divided particles. I do know the booth is pretty large for powder coating will need to have fire suppression. The big question is would be consider this building F-1 or F-2 requiring fire suppression throughout, as the building is well over 12,000 sqft in area. Posted anonymously for discussion. Discuss This | Submit Your Question | Subscribe A cotton production facility has areas of the production where fibers are considered easily ignitable. Which of the following trucks is not permitted in these areas? a. Diesel Type DY b. Electric Type EE c. Diesel Type DS d. Electric Type EX Solution | Posted 09/26/19
In which of the following scenarios is neither explosion protection nor suppression system required? a. Flammable paint warehouse mixing rooms where open transfer of paint occurs b. Dust ventilator equipment where the dust density can be above its lower flammability limit c. Mechanical room where service equipment is subject to explosion d. All of the above require either explosion protection or suppression systems Solution | Posted 08/27/19
We manufacture dust collectors and pre-pipe fire sprinklers within them with a couple fusible fittings.
We pressure test the pipe at our shop, however, when a contractor connects to them in the field, are there any code/standard requirements to check the system for leaks after connecting to the system? We put on our drawings that the contractor should test for leaks, however, we're trying to determine what requirements exist for this application. The problem we're running into is that the connection is supposed to be made and checked before installing cartridges. If a leak occurs, the contractor could address and not get the paper cartridges all wet with running water down at the floor. In this last case they didn't, and I'm trying to address future installation of systems and make sure the contractor checks for leaks. Posted anonymously for discussion. Discuss This | Submit Your Question | Subscribe I've taken technical writing courses and have experience working with MasterSpec, US Military specifications, vendor specifications, and various ownership standard specifications.
I'm giving an internal training to our younger staff and I'm particularly interested in opinions from contractors and vendors who regularly read a variety of specifications for bidding. What advice would you give for those who write specifications? I'd be interested in helping train our staff as well as improve myself. Posted anonymously for discussion. Discuss This | Submit Your Question | Subscribe |
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