BIS CERTIFICATION FOR FLUX CORED SOLDER WIRE IS 1921

Published Date: April 09, 2025 4 min Read

BIS certification is essential for Flux Cored Solder Wire as per IS 1921:2005. This standard ensures that solder wire used in electrical and electronic applications meets stringent quality and performance criteria, including reliable conductivity, mechanical strength, and minimal impurities. Certification guarantees that the solder wire undergoes rigorous testing for flux composition, core activation, and soldering efficiency, ensuring its suitability for various industrial and electronic soldering processes. Compliance with IS 1921:2005 signifies a manufacturer’s commitment to producing high-quality solder wire that meets safety and performance standards.

IS 1921:2005 – Flux Cored Solder Wire Specification

This standard defines the technical requirements and testing methods for flux cored solder wire. It specifies critical parameters such as alloy composition, flux content, melting point, wetting ability, and corrosion resistance. The standard ensures that the solder wire provides consistent bonding, minimal spattering, and reliable electrical connectivity. Certified solder wire under IS 1921:2005 must demonstrate high soldering efficiency and compatibility with different electronic components, making it an ideal choice for industrial and commercial applications.

Benefits of BIS Certification for Flux Cored Solder Wire

BIS certification under IS 1921:2005 ensures compliance with national quality and safety standards, enhancing product credibility and market acceptance. For manufacturers, certification provides regulatory approval, a competitive edge, and eligibility for supply in government and private sectors. For end users, certified solder wire ensures consistent performance, reduced defects in solder joints, and long-term reliability in electrical and electronic assemblies. Certification also facilitates smooth procurement for industries involved in PCB manufacturing, telecommunications, and electrical applications.

Key highlights

Product Name	Flux Cored Solder Wire
Applicable Indian Standard	IS 1921: 2005
Applicable Certification Scheme	Product Certification Scheme (ISI Mark Scheme) Scheme 1 - Schedule 2
Compliance Requirement	Mandatory
Quality Control Order	Click here
Scope as per Standard	This standard specifies the requirements for rosin-based flux cored solder wire, which may be either activated or non-activated (non-corrosive). The solder wire is of circular cross-section and contains a single or multiple continuous cores of flux to facilitate efficient soldering.

Note

For Detailed Information about the Procedure for BIS ISI Certification, Visit :

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Procedure for Domestic Manufacturer
Procedure for Foreign Manufacturer

Timeline for BIS Certification

The estimated timeline for obtaining BIS certification under IS 1921:2005 is as follows:

For Indian Manufacturers (Standard Timeframe – 30 days)
For Foreign Manufacturers (Standard Timeframe – 180 days)

Conclusion

BIS certification under IS 1921:2005 is crucial for ensuring the quality, safety, and reliability of flux cored solder wire. Adhering to this standard enables manufacturers to deliver high-performance solder wire that meets industry and regulatory requirements.

Partner with Aleph INDIA for expert assistance in obtaining BIS certification and ensuring compliance with national quality and safety standards.