BS EN ISO 9455-6-1997 软钎焊剂.试验方法.第6部分:卤化物(不包括氟化物)含量的检查和测定

标准号：BS EN ISO 9455-6-1997
中文标准名称：软钎焊剂.试验方法.第6部分:卤化物(不包括氟化物)含量的检查和测定
英文标准名称：Soft soldering fluxes - Test methods - Determination and detection of halide (excluding fluoride) content
标准类型：J33
发布日期：1997/4/15 12:00:00
实施日期：1997/4/15 12:00:00
中国标准分类号：J33
国际标准分类号：25.160.50
适用范围：This part of ISO 9455 specifies three quantitative methods for the determination of the ionic halide (ex-cluding fluoride) content of soldering fluxes. Halides are calculated as chlorides. A useful qualitative test method for the detection of ionic halides is also de-scribed. 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 ISO 9454-1. This method, which is to be considered the reference method for these fluxes, is suitable for halide contents generally within the range 0,05 % (m/m) to 2 % (m/m) in the non-volatile matter 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 ISO 9454-1. Method C is a titration method for the determination of the halide (excluding fluoride) content of water-soluble fluxes containing phosphates and is applica-ble to flux class 3.2.1 A as defined in ISO 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.