Should ventilation systems be installed in warehouses storing Class A hazardous chemicals?
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This post was last edited by ljy3033 on 2019-8-9 at 10:08. The reason for raising this question was a security-related multiple-choice question: \"Ventilation systems should be installed near the ground in hazardous chemicals storage areas to regularly replace the toxic gases inside those areas.\" The answer given for this question was incorrect. I reviewed the 2018 Building Code, but could not find any provisions regarding ventilation for Class A hazardous material warehouses. Then I reviewed the 1995 \"General Guidelines for the Storage of Common Hazardous Chemicals\" and found some provisions regarding ventilation. However, I observed a company’s warehouse for Class A hazardous materials (including Category 3 and Category 4 items), and there were no air ducts or fans on its exterior walls. So, I’m also conflicted; what do you all think? What is image H5 upload? Images can’t be uploaded; please type it in manually. \"General Rules for the Storage of Commonly Used Hazardous Chemicals\" 5.4.1 Buildings used for storing hazardous chemicals must be equipped with ventilation systems, and proper protective measures for these systems must be in place.
Take a look at GB50016 and GB50160
I’ve checked everything, but I couldn’t find the clause.
If there are no mandatory provisions requiring precise or specific wording, I think it’s optional to include such elements; in that case, decisions should be made based on process requirements and safety standards. One should then consult the safety manual for hazardous chemicals to check its requirements – ventilation should be provided where necessary, while it isn’t required, no such setup is needed. If it’s truly necessary on site, ventilation can still be installed, but the electrical explosion-proof rating must meet the specified requirements.
Warehouses are equipped with ventilation systems. For Class A 3.4, considerations may be given to the risk of exposure to water or moisture. Our company has products classified as Class A 3.4, and experts have recommended installing flammable gas detectors as well as emergency ventilation systems. It has been installed and in use for three years.
I observed a Warehouse Type A 3.4; it didn’t have any ventilation systems outside. I’m not sure whether it was a problem with the design from the start, or whether there are regulations that prohibit the installation of such systems. However, special sections on safety design are supposed to be reviewed by experts, so such design flaws should not occur. Considering the safety judgment question in the original post, does it mean that ventilation systems are prohibited in warehouses storing Class A hazardous materials? However, I couldn’t find any relevant regulatory provisions to support this.
Don’t worry; it’s impossible to ban such things. The Regulations on the Management of Hazardous Chemicals state in Article 20 that units that produce or store hazardous chemicals shall, depending on the types and hazardous properties of those chemicals, install appropriate safety facilities and equipment at their workplaces for monitoring, surveillance, ventilation, sun protection, temperature control, fire prevention, firefighting, explosion prevention, pressure relief, poison prevention, neutralization, moisture prevention, lightning protection, static electricity prevention, corrosion prevention, leak prevention, as well as protective barriers or isolated operation areas. Such facilities and equipment must be regularly maintained and serviced in accordance with relevant standards, industry standards, or other applicable regulations, to ensure their proper functioning.
Therefore, forced ventilation systems should be installed near the ground in hazardous chemicals storage areas to regularly replace the toxic gases inside the warehouse. ”The mistake lies in being “too close to the ground” – are there any other suggestions?
I support the opinion from the 8th floor; Class A warehouses need to be equipped with mandatory ventilation systems. Thank you!
This true/false question is not very precise: 1. Close to the ground: Exhaust systems are installed at the lower level only when they are heavier than air, usually at a height of 500 mm from the ground; if they are lighter than air, they should be installed at the upper level； 2. Toxic gases: Exhaust systems should be installed for both flammable and toxic gases.
Agree with the view from Floor 10; the installation location of ventilation facilities should be determined based on the characteristics of the materials