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Industrial belts do not fail loudly. They fail quietly. A little heat. A little friction. Static you do not see. By the time something goes wrong, the damage is already done.
That is why fire-resistant and antistatic endless V-belts are treated differently under Indian law. BIS does not assume safety here. It demands proof. If your belt is meant for hazardous industrial use and falls under IS 2494 (Part 2): 1993, certification is not optional. It is expected.
This is not a marketing requirement. It is a safety rule.
An endless V-belt has no joint. It runs continuously. It does not get rest cycles. In heavy industries, these belts stay under load for hours, sometimes days.
Now place that belt inside a mine or a cement plant. Heat builds up. Dust collects. Static charge forms. A normal belt can spark. A spark is enough.
Fire-resistant and antistatic V-belts are built to reduce these risks. That is their only purpose. You will usually find them in:
Because of where they are used, BIS treats them as risk-controlled products.
IS 2494 is the Indian Standard that applies to industrial V-belts.
Part 2 focuses only on belts that claim fire resistance and antistatic behaviour.
This standard does not test appearance or branding. It tests behaviour. How the belt reacts to flame. How it handles static charge. Whether it keeps its strength while doing both.
BIS uses this standard to answer one question:
Is this belt safe to run where failure can cause damage?
Yes. There is no grey area.
If you manufacture, import, or sell these belts in India without an ISI mark, you are outside the law. BIS does not issue warnings first in most cases.
Possible outcomes include:
For safety-linked products, enforcement is active.
You must apply if you are involved at any of these levels:
Foreign manufacturers must appoint an Authorized Indian Representative (AIR). BIS will not communicate without one.
Testing is not a formality here. BIS relies heavily on lab data.
Your product must be tested at a BIS-recognised laboratory. No exceptions. The lab checks whether the belt behaves the way the standard expects it to.
Testing usually covers:
If the sample fails, the application stops there.
BIS does not certify products in isolation. It certifies systems.
You will need to submit documents that show how your product is made, tested, and controlled. Typical requirements include:
During inspection BIS checks whether paperwork matches reality
This is how the process generally unfolds
You first confirm that your belt is covered under IS 2494 (Part 2): 1993
You file the ISI application through the BIS system with product and factory details
Samples are sent to a BIS-recognised lab. Testing is done strictly as per the standard
A BIS officer visits your manufacturing unit. They look at machines, raw materials and testing setup
BIS reviews the lab reports and inspection notes together.
If everything matches the standard, BIS issues the ISI licence.
BIS may inspect again after certification. Compliance does not end with approval.
The licence is usually issued for one or two years.
Renewal is not automatic. BIS checks whether quality has been maintained. Sometimes fresh testing is required. Sometimes inspection happens again
If standards slip the licence can be suspended
In industrial supply chains, certification reduces questions.
In hazardous environments uncertified belts are often rejected outright
BIS ISI Mark Certificate for PVC Pipes: IS 4985 200
Most delays are self-inflicted. Common reasons include:
These issues cost time.
If you deal with fire-resistant and antistatic endless V-belts, ISI certification under IS 2494 (Part 2): 1993 is not a choice. It is a requirement tied directly to safety and legality.
If you want the process handled cleanly, without missteps, reach out to Agile Regulatory and get structured support for your BIS ISI Mark registration.
Nishi Chawla
22 Jan, 2026
Nishi Chawla
20 Jan, 2026
Nishi Chawla
20 Jan, 2026
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