ISO3834标准分几个等级，三者之间有何关系，应如何正确选择等级？

Release time:

2022-05-30

当某个制造商满足了某个特定的质量等级时，则可视其也满足了所有更低的质量等级要求而勿需做进一步的验证（如：满足ISO 3834-2 完整质量要求的制造商也满足了ISO 3834-3一般质量要求和ISO 3834-4 基本质量要求） 

答：ISO3834标准分3个等级，分别为： 

ISO 3834-2 完整质量要求 

ISO 3834-3一般质量要求 

ISO 3834-4 基本质量要求 

三者之间的关系为： 

当某个制造商满足了某个特定的质量等级时，则可视其也满足了所有更低的质量等级要求而勿需做进一步的验证（如：满足ISO 3834-2 完整质量要求的制造商也满足了ISO 3834-3一般质量要求和ISO 3834-4 基本质量要求） 

不同等级的选择应依据： 

—— 安全临界产品的范围和重要性； 

—— 制造的复杂性； 

—— 制造产品的范围； 

—— 所用不同材料的范围； 

—— 可能产生冶金问题的范围； 

—— 对生产操作带来影响的制造缺欠（如：错边、变形或焊接缺欠）范围。

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