TR-466-1995

Wetting Balance Standard Weight Comparison Test


 

 

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标准号
TR-466-1995
发布日期
1995年04月01日
实施日期
1995年01月01日
废止日期
中国标准分类号
/
国际标准分类号
/
发布单位
IPC - Association Connecting Electronics Industries
引用标准
16
适用范围
INTRODUCTION The wetting balance test method was the subject of much discussion during the preparation of ANSI/J-STD-O02@ Solderability Tests for Components Leads@ Terminations@ Lugs@ Terminals and Wires. Since no clear consensus was reached regarding the accept eject criteria for the wetting balance test@ the procedure was placed in a section of the standard reserved for tests without requirements. A Wetting Balance Task Group was chartered to refine the test procedure and derive acceptance test requirements. The Wetting Balance Task Group established a four step strategy: 1. Study wetting balance weight measurement precision to establish correlation among all test users@ and equipment manufacturers. 2. Develop standard test samples. 3. Study effects of surface finish and preparation@ component geometry and thermal effects of fixtures. 4. Recommend a revised test procedure with acceptance test requirements. This technical report discusses the results of the Task Group efforts to date on Step 1 of the strategy; establishing correlation among wetting balance test users.




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