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AQL O-rings

The quality system employed by Sixten for analysing and identifying possible defects in NBR rubber O-rings is carried out using the AQL 1.5 standard system.

It is recommended during assembly that the operator performs a visual check of the part 

n° 001 rev. 05 - 15/01/08

Level AQL Standard

ISO 2859-1, MIL STD 105
Sampling level II Ordinary simple plan


– From 150.001 to 500.000 are analysed pz. 800. 

If, after careful analysis of the batch, pcs. 21 are found to be non-conforming, the batch is declared fit, with higher quantities, the entire production batch of pcs. 150.001 is discarded.