This part of IS0 9455 specifies three quantitative
methods for the determination of the ionic halide (excluding fluoride) content of soldering fluxes. Halides are calculated as chlorides. A useful qualitative test method for the detection of ionic halides is also described.
Method A is a potentiometric titration method for the
determination of halide (excluding fluoride) content
and is applicable to flux classes 1 and 2, defined in IS0 9454-1. This method, which is to be considered the reference method for these fluxes, is suitable for halide contents generally within the range0.05 % (m/m) to 2 % (m/m) in the non-volatile matter cation of the flux.
Method B is a titration method for the determination
of the total halide (excluding fluoride) content of
water-soluble fluxes. It is applicable to flux classes 2.1.2.A and 3.1.1.A, as defined in IS0 9454-1.
Method C is a titration method for the determination
of the halide (excluding fluoride) content of watersoluble
fluxes containing phosphates and is applicable
to flux class 3.2.1 .A, as defined in IS0 9454-1.
Method D is a qualitative test, using silver chromate test paper, for the presence of ionic halides. The technique may be used for all classes of flux.
EN ISO 9455-6:1997 Referenced Document
ISO 9454-1:1990 Soft soldering fluxes; classification and requirements; part 1: classification, labelling and packaging
ISO 9455-1:1990 Soft soldering fluxes; test methods; part 1: determination of non-volatile matter, gravimetric method
ISO 9455-2:1993 Soft soldering fluxes; test methods; part 2: determination of non-volatile matter, ebulliometric method
EN ISO 9455-6:1997 history
2022EN ISO 9455-6:2022 Soft soldering fluxes - Test methods - Part 6: Determination and detection of halide (excluding fluoride) content (ISO 9455-6:2022)
1997EN ISO 9455-6:1997 Soft Soldering Fluxes - Test Methods - Part 6: Determination and Detection of Halide (Excluding Fluoride) Content ISO 9455-6: 1995