How to apply for the UL94 test report for shell fire protection?

It is understood that recently, Amazon has blown a lot of wind in the 3C category, and has strictly investigated the UL test report of live products. Many sellers reported that they received relevant email notifications, and because the products could not provide the UL test report within the specified time, there were problems such as suspension of sales and listing being removed from the shelves.

Why does Amazon require a UL test report?

The electronic products sold on the Amazon platform must meet the specified standards. If they fail to meet the standards, it is easy to cause fires, explosions, etc., endangering the safety of consumers' lives and property. Therefore, many customers have their products removed from the shelves and their sales rights transferred due to lack of UL reports. In addition to other issues, malicious reports among peers will inevitably trigger audits.

All charged products on Amazon require relevant UL reports, and test reports issued by ISO 17025-qualified laboratories are required for normal sales and link recovery.

The difference between UL certification and UL test report

UL certification is a voluntary certification. It needs to test the product and audit the factory. It is audited once a quarter. The cost is high, the time is long, and the factory audit is very strict.

The UL test report is based on the selection of the corresponding UL standard for the product to pass the test, and then a qualified test report is issued. The cost is low, the cycle is short, and no factory audit is required. Can be used for Amazon review, customs clearance is invalid.

What is the process of UL94 test report for fire protection of enclosures?

1. Fill out the application form

2. Provide product information

3. Send samples

4. After passing the test

5. After passing the test, issue a UL test report.

Cycle: 5-7 working days to complete

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The UL94 flame retardancy test should be the most extensive in the evaluation of flame retardancy ratings of plastic materials. It is used to evaluate the ability of a material to extinguish after being ignited. According to the burning speed, burning time, anti-dripping ability and whether the dripping beads burn, there are many evaluation methods. Each measured material can have many values ​​depending on color or thickness. When selecting a material for a product, its UL rating should meet the thickness requirements for the wall portion of the plastic part. The UL rating should be reported together with the thickness value, it is not sufficient to report the UL rating without the thickness.

UL94 classification:

The flame retardant grade of plastic is gradually increased from HB, V-2, V-1 to V-0:

UL 94-HB: The lowest flame retardant rating in the UL94 standard. It is required that for samples 3 to 13 mm thick, the burning speed is less than 40 mm per minute; for samples less than 3 mm thick, the burning speed is less than 70 mm per minute; or extinguished before the 100 mm mark.

UL 94-V2: After two 10-second combustion tests on the sample, the flame goes out within 30 seconds. Can ignite cotton wool below 30cm.

UL 94-V1: After two 10-second combustion tests on the sample, the flame goes out within 30 seconds. The cotton wool below 30cm cannot be ignited.

UL 94-V0: After two 10-second combustion tests on the sample, the flame goes out within 10 seconds.No flammable objects can fall

Test Methods:

The UL94 flammability test includes the following four test methods:

1. The material is classified as UL94HB horizontal burning method.

2. The material classification is UL94V-0 ULV-1 ULV-2 vertical combustion test method.

3. The material is classified as UL-5V vertical combustion test method.

4. The material classification is 94VT M-0, 94VT M-1, 94VT M-2 vertical combustion test method.

Thank you: 18122040311 (same as V)