UL routine test (Regular inspection) inspection process and number of times, IMP test (plus strict inspection)

ul routine test (Regular inspection) inspection process and number of times, IMP test (plus strict inspection)

R class
without prior notice
Number of inspections
in principle is 4 times/year, when UL deems it necessary, it is not just 4 times/year
inspectors have the right to enter the relevant area of the factory during the working hours: material warehouse/semi-finished warehouse/Production workshop/laboratory/finished goods warehouse etc. inspection place

class L
without prior notice
Number of inspections
according to the use of UL tags to check, different product gap is particularly large.
inspectors have the right to enter the relevant area of the factory during the working hours: material warehouse/semi-finished warehouse/Production workshop/laboratory/finished goods warehouse etc. inspection place

IMP Test:
when a serious or obvious violation of the UL requirements of the situation, the factory will be strict inspection, the characteristics of the following:
(1) IMP test is an additional test;
(2) The number of tests will increase;
(3) The cost of the inspection will increase;
(4) The production and shipment of the factory will be seriously affected.

IMP inspection (strict inspection)
Check Frequency Increase: R class, from 1 times/quarter, changed to 1-2 Times/month, generally at least 3 months or more;
Cost Increase:
(1) Opening management fee: 2500-3000 USD;
(2) to increase the number of inspections, each time will be based on different products to charge a certain fee;
(3) Each non-conformance report VN charges $554.
Note:vn refers to a discrepancy report.

UL routine test (Regular inspection) inspection process and number of times, IMP test (plus strict inspection)