UNI EN 14436 : 2004

Foreword
0.1 General
0.2 Types of electrolytic tinning process and types of coatings
    of tin or tin alloy
    0.2.1 Process for matt electrolytic coatings
    0.2.2 Process for bright electrolytic coatings
    0.2.3 Process reflow brightened electrolytic coatings
1 Scope
2 Normative references
3 Terms and definitions
4 Designations
   4.1 Material of the strip to be tinned
        4.1.1 General
        4.1.2 Symbol
        4.1.3 Number
   4.2 Material for the coating
   4.3 Material condition of the electrolytically tinned strip
   4.4 Product
5 Ordering information
6 Requirements
   6.1 Composition
        6.1.1 Strip to be tinned
        6.1.2 Material for the coating
        6.1.3 Purity of tin and tin alloy coatings resulting from
              electrolysis
        6.1.4 Use of sub-layer
   6.2 Mechanical properties and grain size of the base material
   6.3 Dimensions and tolerances
        6.3.1 Tolerances on thickness
        6.3.2 Tolerances on widths
        6.3.3 Thickness of coatings and/or sub-layers
        6.3.4 Coating thickness ranges
        6.3.5 Sub-layer thickness
   6.4 Edgewise curvature c
   6.5 Properties of the coating
        6.5.1 Condition
        6.5.2 Appearance
        6.5.3 Solderability
        6.5.4 Adhesion
        6.5.5 Special requirements
7 Sampling
   7.1 General
   7.2 Analysis of the base material
   7.3 Tensile, hardness, grain size and technological tests
8 Test methods
   8.1 Analysis of the base material
   8.2 Tensile test of the base material
   8.3 Hardness test of the base material
   8.4 Estimation of average grain size of the base material
   8.5 Edgewise curvature c
   8.6 Solderability
   8.7 Adhesion
   8.8 Measurement of coating thickness
   8.9 Retests
   8.10 Rounding of results
9 Declaration of conformity and inspection documentation
   9.1 Declaration of conformity
   9.2 Inspection documentation
10 Marking, packaging and labelling
Tables
Bibliography

This document specifies:- the composition and tolerances on dimensions in the thickness range from 0,1 mm up to and including 4 mm of strip of copper and copper alloys to be tinned with tin or a tin-lead alloy or other tin alloys;- the composition of the material to be used for the coating;- the properties of strip before tinning;- the properties of the electrolytically tinned strip;- the preferred thicknesses (mean values) and thickness ranges of coatings and their eventual sub-layers;- the types of coating and sub-layer;- the edgewise curvature of electrolytically tinned strip;- the sampling procedure;- the method of test to be used for verification of conformity to the requirements of this standard;- the delivery conditions.