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Business safety in your supply chain
Useful Corner
 Inspection standard


SunplusInspection uses the well-proven and widely adopted international standard ANSI/ASQC Z1.4-2003 (equivalent to MIL-STD-105e, ISO2859, NF06-022, BS6001, DIN40080, and GB2828) to measure the acceptable quality level of the products we inspect.


How do I determine the right sample size and acceptance number?


For example, the order quantity is 12,000 and we select general inspection levels-II (see Table A) to be as the sampling method, then we can get sample size code letter L (see Table A). With this code letter, and if we take the single sampling plan for normal inspection, we can get the sample size: 315 from table B. It means that 200 samples can well represent this order. For an AQL of 0.15, the corresponding acceptance number is 1 and the rejection is 2.




As default, SunplusInspection uses general inspection level II, Single sampling plan, and the AQL of:
Critical: 0
Major: 2.5
Minor: 4.0
For example, if there's an order with 6,000 products, then according to SunplusInspection's default sampling technique, the sample size will be: 200 products. The maximum acceptable defect number will be:
Critical: 0 defective products
Major: 10 defective products
Minor: 14 defective products




Defect classification and definition


Otherwise specified by customers, SunplusInspection usually defines the defects as below:


A Defect that is likely to result in unsafe conditions or contravene mandatory regulation. In our normal practice, no Critical Defect is accepted; any of this kind of defect found will be subjected to an automatic rejection of inspection result.


A Defect that would reduce the usability of the product, or that shows an obvious appearance defect that would affect the sales of the product.


A Defect that does not reduce the usability of the product, but it is still beyond the defined quality standard and may influence the sale


Our company ordered a factory audit service from the SunplusInsection. They finished the analysis report in three days after the order had been put. The report is very detailed, thorough and professional, with all the information (e.g., organization structure, production process & capacity, quality control & related certificates ect. ect.) we want to know from the suppiler. I am just writing to say thanks for your service. Your expertise and experience had been greatly appreciated. Since emerging markets are our new priority now, we look forwad to doing business with you again in the near future.

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