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发布时间:2014-09-27 23:02:00 点击:

What's the difference between the UL and MET Listed Marks?

The UL and MET marks both indicate that the product has met the minimum requirements of the applicable safety standards. Additionally, both marks validate the product's continued compliance to these standards as evidenced by periodic factory follow-up inspections. The main difference between these two marks is with the level of involvement and partnership between the manufacturer and the test lab. MET does not believe in putting the manufacturer in a defensive mode. MET's safety engineers are customer oriented, and will keep an open line of communication with their client to prevent unnecessary and costly delays.

Since UL writes the safety standards, don’t manufacturers need to display the UL mark?

The legal requirement is that the laboratory which performs the testing is a Nationally Recognized Testing Laboratory (NRTL) recognized by OSHA. While UL does coordinate standards writing, they are only one of several NRTLs for testing and certification.

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