Judgment basis for incoming material return and three types of disposal conclusions

Basis for determination of return: How to distinguish between full batch return, exchange or concession acceptance?

Published: 2026-06-15 EB-LINK Views: 1170 Return determination, concession acceptance, exchange, systemic defects, evidence chain

If there are problems with the incoming materials, it is not necessary to return them. If you make the wrong decision, it will delay the construction period. The consignee needs a set of judgment criteria: to distinguish between systemic defects and accidental defects, and to decide whether to return the entire batch, exchange based on quantity, or accept concessions.

Classify defect properties using out-of-tolerance ratio

If the appearance of a single unit is damaged and some dust caps fall off, these are accidental problems caused by transportation and packaging. You can just exchange them according to the quantity. If the out-of-tolerance ratio of the same batch exceeds 20% of the sampling volume, or the problem is concentrated on a certain parameter (for example, the luminous power is low for the entire batch, the insertion loss is high for the entire batch), it must be treated as a systemic defect: the entire batch is isolated, the manufacturer is notified to adjust the production line test records, and the batch is suspended.

Evidence requirements for each of the three conclusions

Exchange: photo number, batch number, quantity and arrival order number, both parties can sign for completion.
Concession acceptance: clearly state the actual measured value, scope of influence and usage restrictions, which must be agreed in writing by the user and cannot be decided by the warehouse alone.
Whole batch return: retest records, reproduction conditions and instrument number are required. If necessary, send back the sample together with the sample for comparison.

The more complete the evidence, the faster the judgment and the less time spent wrangling.

Don't write selection problems as defects in incoming materials

Common disputes are that incorrect installation, mismatched wavelengths, and equipment not recognizing codes are attributed to the quality of incoming materials. The acceptance form must record the results of the computer installation and the model of the peer device:SFP Gigabit Multimode Dual Fiber Optical ModuleOf course, it will not work when inserting a single-mode link. It is a problem of selection. If the coding does not match, please refer to the website.knowledge baseCompatibility check data, first identify the links and then determine responsibilities.SFP Gigabit single mode dual fiber 10KM optical moduleIt is recommended to record the wavelength and distance files at the same time for this type of commonly used gears.

EB-LINK provides remote review of incoming material judgment: send the acceptance form, actual measured value and batch number. Generally, the conclusion can be given on the same day. Call 0755-83179002.