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How to Obtain BIS Certification for Phthalic Anhydride in India?

calendar01 Jun, 2023
timeReading Time: 4 Minutes
How to Obtain BIS Certification for Phthalic Anhydride in India?

Phthalic Anhydride is a widely-used chemical compound that comes with the molecular formula C8H4O3. It is a white crystalline solid that finds extensive use in different industries. Its main role is as a starting material for the production of plasticizers, which are additives used to improve the flexibility and durability of plastics. Phthalic Anhydride[1] plays a vital role in the manufacturing of polyvinyl chloride (PVC), a commonly used material in construction, automotive, and electrical applications.

Phthalic Anhydride comes under the Conformity Assessment Scheme run by the Bureau of Indian Standards. That is why every manufacturer of Phthalic Anhydride must have a BIS license. Let’s understand the process of securing BIS Certification for Phthalic Anhydride in detail.

What Is The Connection Between BIS Registration And IS5158:1987?

IS5158:1987 specifies the requirements and testing methods for Phthalic Anhydride, Technical, intended for industrial use. The material can exist in solid or molten form, with solid forms appearing as flakes, pellets, or crystals, free from any agglomerates, discoloration, or foreign substances.

To meet the standard, the material must undergo testing according to the specified method and meet the requirements outlined in the standard. Manufacturers are responsible for ensuring the safe handling and storage of the material in compliance with the standards.

Due to its moderate fire hazard and irritating properties, precautions must be taken during handling. Skin contact should be avoided, and exposure to vapors, fumes, and dust should be minimized. Safety goggles must be worn to protect the eyes.

Compulsory Lab Tests for Phthalic Anhydride

The following are the compulsory lab tests that help determine the overall quality of the Phthalic Anhydride. Passing these tests is mandatory for securing the BIS certification in India.

  • Crystallizing point test
  • Free acidity test
  • Color of the molten material
  • Maleic Anhydride & other oxidizable impurities
  • Iron contain test
  • Ash test
  • Naphthalene contain test

Packing and Marking Norms Concerning BIS Certification for Phthalic Anhydride

According to IS 5158:1987, packaging and marking procedures should adhere to the standard’s guidelines. The ISI mark must be present on each container of technical-grade phthalic anhydride, provided that the product inside meets all the requirements outlined in the specification.

Furthermore, each container should be properly labeled with the required information as specified in the standard. To use the ISI mark, manufacturers must obtain a license from the Bureau of Indian Standards (BIS), which is granted after a thorough evaluation of their manufacturing infrastructure, quality control, testing facility, and production protocols.

Compulsory Paperwork Relating To BIS Certification for Phthalic Anhydride

To secure BIS certification for Phthalic Anhydride, manufacturers need to render the following paperwork as part of the certification process:

  1. Application Form: A completed application form, including details about the manufacturer, product, and manufacturing processes.
  2. Manufacturing Infrastructure Details: Paperwork reflecting the manufacturing facility, layout plans, machinery details, and production capacity information.
  3. Quality Control Measures: Documentation manifesting the quality control procedures implemented to ensure desirable product quality, including quality assurance protocols, testing methods, and QMS.
  4. Testing Capabilities: Information concerning the manufacturer’s in-house testing facility or documentation of arrangements made with BIS-approved labs for product testing.
  5. Production Process Description: A complete description of the production process for Phthalic Anhydride, including the raw materials used, manufacturing steps, and any specific quality control checkpoints.
  6. Product Samples: Manufacturers may be required to submit samples of Phthalic Anhydride for testing and evaluation by BIS-approved laboratories to verify compliance with the specified standards.
  7. Legal and Statutory Documents: Copies of relevant legal and statutory documents, such as the company’s incorporation certificate, GST registration, and any other required licenses or permits.

It’s important to note that the specific requirements and guidelines for document submission may vary based on the BIS regulations and standards for Phthalic Anhydride. Manufacturers should carefully review the BIS norms and provide legit and complete paperwork to ensure a smooth certification process.

How to Apply For Secure BIS Certification for Phthalic Anhydride?

To obtain BIS certification for Phthalic Anhydride, manufacturers must stick to the given process:

Step 1. Application Submission

Manufacturers submit a comprehensive application to the BIS with all required information and documentation.

Step 2. Document Verification

The BIS reviews the submitted documents, assessing manufacturing infrastructure, quality control measures, testing capabilities, and production processes.

Step 3. Factory Inspection

The BIS may inspect the manufacturer’s facility to ensure compliance with standards, assessing manufacturing processes, equipment, and facilities.

Step 4. Sample Testing

Manufacturers may need to provide samples of Phthalic Anhydride for testing in BIS-approved laboratories to verify compliance with specified standards.

Step 5. Evaluation and Assessment

The BIS evaluates compliance with standards, considering quality control measures, adherence to manufacturing practices, and overall product quality.

Step 6. Grant of License

If all requirements are met, the BIS grants a license for Phthalic Anhydride, indicating compliance with standards and eligibility to bear the ISI mark.

Manufacturers should carefully follow BIS instructions, provide accurate information, and ensure compliance with standards for a successful certification outcome.

What If I Fail To Secure The BIS Certification For Phthalic Anhydride?

Failing to secure BIS certification for Phthalic Anhydride has several implications. It limits market access, as customers prioritize certified products. Your reputation and trust may suffer, as BIS certification signifies quality. Compliance with regulations and government policies becomes challenging.

Competitors with certification gain a competitive advantage. Concerns arise regarding product quality and safety. It is crucial to assess the reasons for failure and address deficiencies. Improving product quality and compliance can lead to certification, market acceptance, and customer trust.


Getting professional assistance for obtaining BIS certification for Phthalic Anhydride has numerous benefits. Experts bring valuable expertise and experience to ensure adherence to BIS standards. An expert firm like Corpbiz offers guidance in preparing precise documentation, streamlining the certification process, and boosting the chances of success.

Our experts save time and resources, and their industry connections facilitate sample testing and compliance. Manufacturers can focus on their core operations while experts handle the certification procedure. Ultimately, expert assistance simplifies the process, enhances compliance, and maximizes the probability of achieving a successful certification outcome.

Read Our Article: BIS Certification For Terephthalic Acid: An Extensive Outlook

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