ISI / BIS Certification for Hot-dip Zinc Coating on Structural Steel Bars for Concrete Reinforcement

Hot-dip zinc coating on structural steel bars for concrete reinforcement is a process that provides corrosion protection to steel reinforcement used in concrete structures. This coating involves immersing the steel bars in a bath of molten zinc, allowing the zinc to bond to the surface of the steel and form a protective layer. The hot-dip process ensures uniform coverage and adherence of the zinc coating, which acts as a barrier against corrosion by preventing moisture, oxygen, and other corrosive elements from reaching the steel substrate. This protective layer significantly extends the service life of the steel bars and enhances the durability and longevity of the concrete structures they reinforce. Hot-dip zinc coating is commonly used in construction projects where steel reinforcement is exposed to harsh environmental conditions, such as bridges, highways, buildings, and marine structures, providing long-lasting corrosion protection and structural integrity.

IS 12594:1988 is a crucial standard for hot-dip zinc coating on structural steel bars used in concrete reinforcement, playing a pivotal role in ensuring the quality, durability, and reliability of these essential construction materials. This standard provides comprehensive guidelines and specifications for manufacturers, covering various aspects such as coating thickness, adhesion, surface finish, and corrosion resistance. By establishing clear parameters for factors like uniformity of coating, coverage, and adherence to international standards, IS 12594:1988 ensures that zinc-coated steel bars meet stringent requirements for protection against corrosion in concrete reinforcement applications. Compliance with this standard not only enhances the longevity and structural integrity of reinforced concrete structures but also ensures safety and reliability in construction projects. Adherence to IS 12594:1988 promotes regulatory compliance and contributes to sustainable construction practices by reducing the need for frequent maintenance and replacement of corroded steel reinforcement bars.

Note: Obtaining the ISI/BIS Certification is a mandatory requirement for manufacturers of Hot-dip Zinc Coating on Structural Steel Bars for Concrete Reinforcement – Specification to sell their products in the Indian market.

In compliance with Indian regulations, manufacturers are required to obtain the ISI/BIS certification for their Hot-dip Zinc Coating on Structural Steel Bars for Concrete Reinforcement – Specification to legally market and sell these products within India. This certification signifies that the structural steel bars with hot-dip zinc coating adhere to specific quality and safety standards mandated by the BIS for use in concrete reinforcement applications. Without the ISI/BIS certification, manufacturers face legal implications and barriers to entering the Indian market. Thus, obtaining this certification is not only a legal necessity but also a crucial step for manufacturers to showcase the compliance, reliability, and quality of their products in line with industry standards. This certification process underscores the importance of ensuring the integrity and performance of structural steel bars with hot-dip zinc coating, instilling confidence among stakeholders in the construction and engineering sectors regarding the products' suitability for concrete reinforcement applications in India.

About ISI / BIS Certification

Indian Standards Institute, or ISI was renamed the Bureau of Indian Standards (BIS) in 1987. The official mark that the Bureau of Indian Standards provides for manufacturers of various goods is the ISI Mark. It is used to indicate compliance with Indian standards (IS) set by the Bureau of Indian Standards (BIS) and has been used as a conformity marking for industrial products. Manufacturers received permission from BIS to use the ISI Mark on items that comply with relevant Indian requirements through the product certification program. 

Only manufacturers (domestic or foreign) who produce the finished product will be awarded ISI Certification. This will not be given to any product importers, traders, dealers, or distributors.

Documents Required for ISI / BIS Certification

The following documentation is required to get an ISI certification:

• Main Application Form V
• Address Proof of Manufacturing Unit
• Details of Manufacturing Process
• Test Report of products

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Process of ISI / BIS Certification

There are two approaches for Indian manufacturers to become certified with the ISI Mark:

• Regular Procedure
• Simplified Procedure 

Regular Procedure

With the possible exception of cases deemed "All India first," which might take up to 180 days, the licensing procedure is expected to be finished in 120 days. This timeline starts on the day the application is received, assuming that at different points in time the documentation, unit assessment, and product conformance are all deemed acceptable.

Step 1: Manufacturing Unit Customization in Compliance with Applicable Indian Standards

• Identifying the applicable Indian Standard
• Establishing in-house testing facilities as per the Standard's requirements

Step 2: Submission of the Application Form

• Preparing an Internal Test Report for the product by the relevant Indian Standard
• Compiling all necessary documents
• Completing the Online Application Form
• Online payment of application fees directly to BIS
• Submitting hard copies of the Application Form with all enclosures to the relevant Branch Office (BO) of BIS

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Simplified Procedure

This is a much faster process than the standard procedure. After a factory inspection is deemed satisfactory and the initial evaluation establishes that the sample complies with the applicable Indian Standard(s), the license application process is expected to be finished in 30 days.

Step 1: Adapting the Manufacturing Unit to Comply with the Relevant Indian Standard

• Identifying the applicable Indian Standard
• Establishing in-house testing facilities to meet the Standard's requirements

Step 2: Sample Testing

• Obtaining the necessary certificate for raw materials (Material Test Certificate - MTC)
• Conducting product sample testing at a BIS-recognized testing laboratory

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ISI Mark Certification Process for Foreign Manufacturers

The process of obtaining ISI Mark Certification for Foreign Manufacturers typically includes the following steps:

Step 1: Application

• Compile all the required documents.
• Submit the documents along with the Application Fee.
• An Application Number will be allotted.
• Scrutiny of the Application will be conducted within a specified time frame.​

Step 2: Query Raised (If Any)

• If any documents are missing or there is non-compliance, you will be informed.
• You need to submit a reply within the given timeframe.

​For more detailed information, please click here.

Why choose Brand Liaison?

Brand Liaison provides helpful support for achieving ISI Mark Certification. Among our offerings are:

•  Expert guidance
•  Streamline process
• Comprehensive support
• Cost-effective solutions
• Time efficient

Please click here to get in contact with our team of specialists for a deeper explanation of the paperwork and steps needed to get ISI Mark Certification.