Welcome to Standphill Certificate Consultants
- CALL US: +91-85279 30453
- Mail US : info@standphillindia.in
- ADD US : Standphill Delhi
- CALL US: +4207 700 1430
- Mail US : London@Consulting.com
- ADD US : Standphill.Delhi

BIS ISI Mark Certification for Styrene (Vinyl Benzene) – IS 4105:2020 | Complete Process Guide
Styrene, also known as Vinyl Benzene, is a key industrial chemical used in the production of plastics, synthetic rubber, resins, and insulation materials. Because of its widespread industrial use and potential health and environmental hazards, the Bureau of Indian Standards (BIS) has made ISI Mark Certification mandatory for styrene under the standard IS 4105:2020.
This blog explains the BIS certification process for Styrene, the applicable standard, documentation, costs, and how manufacturers and importers can achieve compliance.
Applicable Indian Standard for Styrene
Standard Number: IS 4105:2020
Product: Styrene (Vinyl Benzene)
Standard Title: Styrene – Specification
Certification Scheme: ISI Mark Scheme (Scheme I of BIS Conformity Assessment Regulations, 2018)
Authority: Bureau of Indian Standards (BIS)
Compliance: Mandatory under Quality Control Order (QCO) by Department of Chemicals and Petrochemicals
What is Styrene?
Styrene is an aromatic hydrocarbon that appears as a clear, colorless liquid. It is primarily used as a monomer in the manufacture of:
Polystyrene plastics
ABS (Acrylonitrile Butadiene Styrene)
Synthetic rubber
Latex
Fiberglass and insulation foams
Due to its flammability and potential toxic effects, controlling the quality and purity of Styrene is essential for safety and industrial efficiency.
Why is BIS Certification Mandatory?
The Department of Chemicals and Petrochemicals, under the Ministry of Chemicals and Fertilizers, has included Styrene in its list of mandatory certified chemical products through a Quality Control Order (QCO). This ensures:
Consistent chemical quality across all manufacturers
Prevention of substandard or unsafe products
Safer use in downstream industries
Legal authorization for sale, manufacture, and import in India
Without BIS certification, manufacturing, importing, or selling Styrene in India is prohibited.
What IS 4105:2020 Covers
IS 4105:2020 outlines the specifications for:
Purity of Styrene (generally ?99.5%)
Limits on impurities like benzene, toluene, ethylbenzene, aldehydes, sulfur compounds, and peroxides
Physical characteristics like color, clarity, and odor
Storage and packaging conditions to prevent contamination and polymerization
Samples must pass tests in BIS-recognized laboratories as per the methods outlined in the standard.
ISI Marking and Labeling Requirements
Certified Styrene containers must clearly display the ISI Mark, including:
Standard number (IS 4105:2020)
Manufacturer’s name or trademark
Batch number and net quantity
BIS license number (e.g., CM/L-xxxxxxx)
Hazard warnings and safety labels as per applicable laws
This marking proves that the product complies with Indian safety and quality regulations.
BIS Certification Process for Styrene
1. Application Submission
Apply online via the Manakonline BIS portal and upload all required documents.
2. Product Testing
Send samples to a BIS-approved laboratory for testing as per IS 4105:2020 specifications.
3. Factory Audit
BIS officials inspect the manufacturing unit to verify process control, raw material quality, storage practices, and in-house testing facilities.
4. Grant of ISI Mark License
If all requirements are met, BIS grants a license to affix the ISI mark on your Styrene packaging.
5. Ongoing Surveillance
BIS may carry out surveillance inspections and market sampling to ensure continued compliance.
Certification for Foreign Manufacturers
Foreign manufacturers must apply under the Foreign Manufacturers Certification Scheme (FMCS) and:
Appoint an Authorized Indian Representative (AIR)
Submit product samples for testing in India
Undergo factory audits by BIS officials
Obtain the ISI mark before export to India
Documents Required for BIS Certification
Company registration and factory license
List of machinery and quality control equipment
In-house test report (if available)
Packaging and labeling details
Trademark authorization (if applicable)
Flowchart of the manufacturing process
ID proof of authorized signatory
Estimated BIS Certification Costs
Fee Component | Estimated Amount (INR) |
Application Fee | 1,000 |
Product Testing Charges | 25,000 – 60,000 |
Factory Audit Fee | 7,000 – 15,000 |
License Fee (Annual) | 1,000 |
ISI Marking Fee | Based on production volume |
Note: Costs vary depending on product volume, location, and lab charges.
How Standphill India Can Help
The BIS certification process for chemicals like Styrene can be complex. Standphill India makes the process easier by offering:
Complete documentation and application assistance
Lab coordination for product testing
Factory audit preparation
Support for foreign manufacturers under FMCS
Post-certification compliance services
We help you achieve BIS certification quickly, accurately, and hassle-free.
Conclusion
If you manufacture, sell, or import Styrene (Vinyl Benzene) in India, obtaining BIS ISI Mark Certification under IS 4105:2020 is no longer optional—it is a legal necessity. It ensures that your product is safe, high-quality, and trusted by industries across India.
For reliable BIS certification assistance, reach out to Standphill India today.
For More Blogs Click Here
- BIS Certification for Palm Fatty Acids
- BIS ISI Mark Certification for Hinges
- BIS Certification for Toys
- BIS Certification for Flashlights
- BIS ISI Mark Certification for Acetic Acid
- BIS Certification for Methanol
- BIS Certification for Digital Television Receiver for Satellite Broadcast Transmission
- Get BIS ISI Mark Certification for Tin Ingot
Request a call back.
For Business: For Business inquiry fill our short feedback form or you can also send us an email and we’ll get in touch shortly, or Toll Free Number +91 85279 30453.
Office Hours : 09:00 and 20:00 Mon to Sat, Sun - Closed