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Polyphosphoric Acid is used all over industry but most people don’t really think about the quality side of it until there’s a compliance requirement staring at them. In India this chemical falls under the BIS Compulsory Registration Scheme (CRS) and the relevant standard is IS 17439:2020. If someone wants to manufacture or import it they need to make sure the product meets that Indian Standard and has CRS approval before it goes into the market
Polyphosphoric Acid basically comes from phosphoric acid but with water removed so the molecules sort of chain up and form a thicker more reactive liquid. It’s used for:
This standard lays out basic requirements for what can be labelled as polyphosphoric acid in India. It includes points like:
The idea isn’t to make things harder for a manufacturer but to avoid low-grade chemicals entering the supply chain.
Once BIS puts a product category under CRS the rule becomes pretty non-negotiable. Polyphosphoric Acid is now on that list so you simply cannot sell or import it in India without registration
A few reasons BIS enforces CRS for chemicals:
BIS CRS Registration for Trimethyl Phosphite Technical Grade IS 17412: 2020
Anyone supplying the chemical in India must get registration. That usually means:
The licence always belongs to the manufacturer not the importer. Importers only act as communication and documentation support.
From experience, the application feels smooth if the paperwork is ready. Essential items include:
Basic business certificates, manufacturing licences, site details and similar paperwork proving the facility is legitimate
Datasheets, chemical composition details and internal QC parameters that show how your polyphosphoric acid aligns with IS 17439:2020
This is the big one. BIS accepts only test reports from approved labs. The sample must match the final commercial product otherwise they reject it
A document that formally allows the Indian representative to file and speak to BIS on behalf of the manufacturer
The workflow is predictable but small mistakes can slow it down. Here’s the basic sequence:
You or your AIR submit the application online, declaring the product category, standard number (IS 17439:2020) and all company details.
You send polyphosphoric acid samples to a BIS-recognized lab. The lab checks purity, chemical structure and other parameters listed in the standard
When the lab sends the report it must be uploaded exactly as BIS expects. Even minor mismatches in product name or grade can cause resubmission
Officials check all documents, test reports and manufacturing info. If something looks unclear they may ask for clarification
If everything is in order BIS issues the CRS registration number
Every package or container must carry the BIS Standard Mark and your CRS number. Missing markings can create issues during inspection or customs checks
IS 18112: 2025 BIS CRS Registration for Television Sets
These issues come up more often than people expect:
Fixing these usually isn’t complex but it costs time. Better to correct them before submission.
Skipping BIS registration might seem convenient, but the consequences are serious:
A compliant manufacturer or importer avoids all this trouble and achieves smoother operations.
Here are a few quick pointers that save effort:
A little organisation goes a long way in compliance work.
Polyphosphoric Acid is a high significance industrial chemical and BIS has required its registration as mandatory to provide safe and reliable supply. Manufacturers and importers are bound to comply with stringent quality standards in the manufacture and import of the product to Indian users under the IS 17439: 2020.
Businesses are able to have an easier clearance once the registration of CRS has been issued and this increases customer confidence and full adherence to the national policies. It will seem to create additional paperwork in the initial days but in the long term it will protect the industry and the final consumers. Contact Agile Regulatory for a hassle-free process.
Divya Saxena
30 Jan, 2026
Vanshika Mathur
30 Jan, 2026
Nishi Chawla
29 Jan, 2026
Nishi Chawla
29 Jan, 2026
Nishi Chawla
29 Jan, 2026
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