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It's so easy!5 Y5 k5 }2 `" q0 Y$ y! g
IPI: it's the first inspection before your shipment, don't ship any products with UL mark without finishing the IPI.
% I$ s. B" o" i5 i$ Y- lRegular 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.: o4 Z3 f2 o! l# N' d
IIP: now it's changed to IMP(increased monitor program), it's an pulish procedure.
: i! g7 J" I3 D9 x* P& L- ^/ ^VN: 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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