- Six of the classifications relate to materials commonly used in manufacturing enclosures, structural parts and insulators found in consumer electronic products (5VA, 5VB, V-0, V-1, V-2, HB).
- Three of the remaining six classifications relate to low-density foam materials commonly used in fabricating speaker grills and sound-deadening material (HF-1, HF-2, HBF).
- The last three classifications are assigned to very thin films, generally not capable of supporting themselves in a horizontal position (VTM-0, VTM-1, VTM-2). These are usually assigned to substrates on flexible printed circuit boards.
![HK LEE HING INDUSTRY CO., LIMITED](../Uploads/53007d5b00000.png)
Latest news
- When should you calibrate your test eq
- IEC60968-1 Lamp Gauge List
- B15 Lamp Gauge List
- 0~15kv/30kv AC 0-2/20mA / DC 0-2/10mA
- Color Temperature and Correlated Color
- IPX Ratings Described
Contact us
- ADD: 1F Junfeng Building, Gongle, Xixiang, Baoan District, Shenzhen, Guangdong, China
- TEL: +86-755-33168386
- FAX: +86-755-61605199
- E-mail: sales@china-gauges.com
UL 94 Flame Classifications
2016-03-13There are 12 flame classifications specified in UL 94 that are assigned to materials based on the results of these small-scale flame tests. These classifications listed in descending order for each of the following three groupings are used to distinguish a material's burning characteristics after test specimens have been exposed to a specified test flame under controlled laboratory conditions.