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It's so easy!
# V8 K# q' _. e' d6 @IPI: it's the first inspection before your shipment, don't ship any products with UL mark without finishing the IPI.
7 A/ O( |2 `2 D( q' x$ s0 ARegular inspection: after the IPI, normally, for R file, there will be four times follow up inspection per year for UL, but for L file, it depends on the output of your products.
2 q+ ^" k. Z, `; sIIP: now it's changed to IMP(increased monitor program), it's an pulish procedure.
$ v, o5 v/ I, M0 L5 G! AVN: variation notice/finding, if found, the UL auditor will issue VN, mayby hold-shippment is required, now UL will fine the factory for the VN. |
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