IS 1921 : 2025 Solder Wire - Solid and Flux Cored - Specification
1 SCOPE
This standard covers requirements of solid and flux cored solder wire, classification of fluxes in cored wire as per its constituents, its performance requirements and test methods.
NOTES
1 Annex A specifies two methods for the extraction of flux incorporated in flux cored solder wire. The solution so obtained may be used for testing purposes. Alternatively, the flux obtained directly from the supplier can also be used for testing the flux provided that no additives have been added to the flux except for inert plasticizers.
2 Annex B gives the form of the test specimen of flux to be used for classification test and the main purpose of the test. It also provides the guidance on the test report format of the fluxes of flux cored solder wire.
2 REFERENCES
The standards listed in Annex C contain provisions which through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of these standards.