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BIS ISI Mark Certification for Hard Drawn Steel Wire Fabric IS 1566 1982

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BIS ISI Mark Certification for Hard Drawn Steel Wire Fabric IS 1566 1982

BIS ISI Mark Certification for Hard Drawn Steel Wire Fabric IS 1566 1982

Nishi Chawla

16 Sep 2025

Reading Time: 6 Minutes

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BIS ISI certification for hard drawn steel wire fabric (IS 1566:1982) is required for manufacturers and suppliers who want to mark and sell this product as conforming to Indian standards. The certification proves that the fabricated welded wire mesh meets mechanical and dimensional requirements set by the standard and it helps entry to public tenders and quality-focused markets

What this product is?

Hard drawn steel wire fabric consists of longitudinal and cross wires, electrically welded to form a mesh. It serves as concrete reinforcement in slabs and pavements. The mesh comes in square and oblong patterns and in different wire diameters and spacings. The IS 1566:1982 specifies wire diameter, mesh spacing, tensile properties and marking rules.

Who needs this certification?

If you make, import or sell welded wire fabric for reinforcement, you must get BIS certification to claim ISI conformity in India. This applies to manufacturers, brand owners and authorised representatives. Buyers such as contractors and agencies often prefer ISI marked material for safety and contractual compliance.

Core documents you must prepare

Prepare clear and signed documents before you apply. Typical list includes:

  • Application form for BIS or FMCS as applicable.
  • Company incorporation proof and GST
  • Plant address and production process details.
  • Product drawings, mesh sizes and bill of materials.
  • Test reports from NABL or BIS recognised labs showing tensile strength, elongation and dimensional checks.
  • Quality control plan and production inspection records.
  • Label and marking details, and photographic evidence of samples.

Testing and standards to follow

Tests follow IS 1566 and related standards such as IS 432 (for hard drawn wire). Labs measure wire diameter, tensile strength, elongation, weld shear and mesh dimensions. Use NABL accredited labs that report results in the BIS accepted formats. Poor or non standard reports invite rejection.

 BIS CRS Certificate Registration for Nickel-Cadmium Battery

Step by step certification process

The BIS certification follows known steps. Keep files ready to avoid time loss.

  • Confirm the correct product code and scope under BIS lists.
  • Test representative samples at a recognised lab.
  • Apply on the BIS portal with documents and fees.
  • BIS schedules a factory inspection to verify quality systems and sample production.
  • On satisfactory report, BIS grants the licence and permission to use the ISI mark.
  • Maintain records and submit periodic production and testing data.

Quality manual and factory readiness

BIS inspectors check your plant, tools and quality measures. Keep a quality manual. Show how you pick samples. Show test equipment calibration records and staff training notes. Labelling must match the licence scope. The inspector will check marking on bundles and coils. Be precise, and keep records tidy.

Fees, timeline and common delays

Fees cover application, inspection visits and surveillance. Testing costs go to the lab. Typical timeline runs from a few weeks to a few months. Delay often arises from incomplete tests, mismatched model details or weak quality systems. Plan extra time for first time applicants.

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Post-certification duties

After grant you must follow licence rules. Use the ISI mark only on certified products. Keep test records and production logs. Allow surprise inspections and cooperate with BIS surveillance. Report any design or process change to BIS and retest if needed

Practical tips for smooth approval

  • Pre-audit your factory using a checklist
  • Use a NABL lab experienced with wire tests
  • Keep sample batches, with heat and lot numbers.
  • Train staff on marking, packing and records.

Transitional and trade considerations

If you import or rebrand mesh, appoint an Indian authorised representative. Ensure imported batches have traceable mill test certificates. For exports from India, ISI marking can boost reputation in some foreign markets.

Regulatory context and scope

IS 1566 appears on BIS product lists and on product manuals. Many public works call for ISI certified mesh. Check the BIS page and product manual for updates before you apply. 

Sampling and acceptance criteria

The product manual gives sampling rules and test frequency. Inspectors take samples from lots. Tests cover tensile, elongation and weld shear. Acceptance matches the standard limits. Keep heat numbers and test certificates with each batch to avoid disputes.

Common non-conformities found during inspectio

Inspectors often find wrong mesh sizes, out-of-tolerance wire diameters, missing heat numbers or weak welds. Uncalibrated instruments also cause notes. Fix these with clear QC steps.

Cost-saving tips and procurement advice

Use batch testing and statistical samples to cut lab fees. Ask suppliers for mill test certificates. Keep a reliable NABL lab on retainer for fast tests. Plan procurement lead times to cover tests and inspection.

Final checklist before you apply

  • Signed application, GST and incorporation proof.
  • NABL test report matching product samples.
  • Quality manual and calibration records.
  • Label specimen and packing photos.
  • Payment receipt and authorised signatory proof.

Conclusion

BIS ISI certification of IS 1566 products is done by tests, paper work and factory examination. Agile Regulatory helps the manufacturers in the entire process. They assist in document preparation, arranging of NABL tests, preparing the factory to be inspected and following up with BIS. Professional assistance minimizes mistakes and licensing would take less time, and concentrate on quality mesh.

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