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IS 18340 : 2023 BIS Certificate Registration for Vinyl Sulphone

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IS 18340 : 2023 BIS Certificate Registration for Vinyl Sulphone

IS 18340 : 2023 BIS Certificate Registration for Vinyl Sulphone

Nishi Chawla

12 Aug 2025

Reading Time: 7 Minutes

IS 18340 : 2023 BIS Certificate Registration for Vinyl SulphoneVinyl sulphone is an important chemical which is predominantly used by the dye and textile Industries. Its reactive quality enables it to be affixed easily to fabrics to give long-lasting brilliant hues. Nevertheless, due to the nature of its manufacturing, import, and sale, such as chemicals and ecological impact, the production, importation, and sale of vinyl sulphone in India should be performed under the stringent safety and quality standards. IS 18340:2023 was introduced by the Bureau of Indian standards (BIS) to make sure that vinyl sulphone ensures these requirements.

Included in this standard are quality inspections, labeling requirements, security provisions, and testing. Under this standard, businesses dealing in production or importing of vinyl sulphone require BIS certificate in order to be authorized to conduct business in India.

What is IS 18340:2023?

The latest Indian Standard IS 18340:2023 is formulated by BIS for Vinyl Sulphone. It specifies the product’s composition, purity level, permissible contaminants and testing methods

Key points in this standard:

  • Defines the minimum purity requirements for vinyl sulphone.
  • Lists the acceptable limits for impurities and hazardous substances.
  • Prescribes methods for sampling and chemical testing.
  • It include labeling and packaging norms

The main aim is to ensure safety for workers, end-users and the environment while promoting fair trade practices in the chemical market

 BIS Certificate for Aluminium Alloy Products IS 733

Why BIS Certification is Mandatory for Vinyl Sulphone

BIS certification is mandatory for vinyl sulphone. This is because:

  1. Safety Concerns – Vinyl sulphone is reactive and can be harmful if mishandled
  2. Environmental Protection – Prevents unsafe disposal and contamination
  3. Quality Assurance – Maintains a uniform standard for industrial use.
  4. Market Regulation – Prevents low-grade imports from entering the market.

Without a valid BIS license, the manufacturing, importing, storing, selling, or distributing vinyl sulphone is prohibited in India.

Eligibility for IS 18340:2023 BIS Certification

The following entities can apply for certification:

  • Indian manufacturers of vinyl sulphone.
  • Foreign manufacturers exporting to India.
  • Importers or traders who source the product from certified manufacturers.

In the case of foreign applicants they must appoint an Authorised Indian Representative (AIR) to liaise with BIS during the registration process

Documents Required for BIS Certification

Document Type Purpose
Application Form Official request for BIS certification
Product Details Chemical composition, test reports, and technical specifications
Manufacturing License Proof of legal production rights
Factory Layout & Process Flow To verify production capability
Quality Control Manual Ensures in-house quality measures
Authorized Indian Representative Details For foreign manufacturers
Commercial Invoice & Import-Export Code (IEC) For importers

BIS Registration Process for Vinyl Sulphone

The BIS certification process follows these main steps:

Step 1. Application Submission

  • Fill out the BIS online application form for IS 18340:2023.
  • Attach required documents and pay the application fee.

Step 2. Sample Collection & Testing

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  • BIS officials or recognized labs collect product samples.
  • Testing is carried out as per IS 18340:2023 parameters.

Step 3. Factory Inspection

  • BIS conducts on-site inspections to check production facilities and quality control systems

Step 4. Evaluation of Test Reports

  • Test results are compared against the BIS standard.

Step 5. Grant of BIS License

  • If the product meets the standard BIS issues the certification 12
  • The license is valid for two years and can be renewed

 How to get BIS Certificate for import in India?

Technical Requirements under IS 18340:2023

The standard outlines specific chemical and physical requirements:

  • Purity Level – Minimum purity percentage of vinyl sulphone.
  • Moisture Content – Must be within safe limits to prevent clumping.
  • pH Level – Maintained within the prescribed range
  • Impurities – Heavy metals, residual solvents and other contaminants must be below the specified threshold
  • Stability – Stability is required under normal storage conditions

Labeling & Packaging Norms

Manufacturers must ensure proper labeling and safe packaging:

  • Product name and chemical formula.
  • Manufacturer’s name, address, and BIS license number.
  • Batch number and manufacturing date.
  • Net weight.
  • Safety instructions for handling.
  • Storage temperature guidelines.

Packaging must be strong enough to prevent leakage, contamination or accidental exposure

Penalties for Non-Compliance

Violating BIS regulations for vinyl sulphone can lead to:

  • Seizure of goods by authorities.
  • Heavy fines under the BIS Act, 2016.
  • Suspension or cancellation of the BIS license.
  • Legal prosecution for repeated violations.

Renewal of BIS License

The vinyl sulphone is valid for two years. To renew it applicants must:

  • Submit a renewal form before the expiry date.
  • Provide updated test reports.
  • Pay the renewal fee.

If renewal is delayed beyond the grace period a fresh application will be required

Role of BIS in Maintaining Product Quality

The BIS not only grants certification but also:

  • Conducts surprise inspections.
  • Collects random market samples for testing.
  • Updates standards periodically to match international benchmarks.

Conclusion

Vinyl sulphone IS 18340:2023 BIS certificate is more than a rule of thumb, but it is a sign of quality assurance that gains trust among the buyers and users. Adhering to this standard, the manufacturers and importers can spare the safety of people and remain environmentally responsible, as well as beholden to the demands of the market.

This can be avoided with strict compliance, as the businesses will be protected of the legal issues and enhance their positions in the market adding to the safer chemical industry in India.

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