爱乐透彩票

爱乐透彩票
News
Tel:0769-22336957
Fax:0769-22336775
Contact: Mr. Cha 13925853980
East region
Mr. Wang 18621676588
Website:www.gd1now.com
Address:Yifang Huimei Technology Park,Chashan,Dongguan
Your current location:Index> Flame encyclopedic knowledge> "Detail"
HB UL94 flammability rating plastics test methods
Source:   Date:2014/7/29 19:52:33   Views:
UL94 flammability rating is the most widely used plastic material flammability standards. It is used to evaluate the ability of the material after being ignited extinguished. According to the burning speed, burning time, anti-drop capabilities, and can have a variety of combustion Bubble whether evaluation method. Each test material can get a lot of value based on color or thickness. When a product material is selected, its thickness shall meet the requirements of UL grade plastic parts wall portion. UL rating should be reported together with the thickness, grade and not only reports UL thickness is not enough.
Plastic flammability rating HB, V-2, V-1 and V-0 how to define?

Plastic flammability rating of HB, V-2, V-1 to V-0 incremental:
HB: UL94 and CSA C22.2 No 0.17 standard in the bottom of the flame retardant grades. Requirements for 3-13 mm thick sample, the combustion rate is less than 40 mm per minute; less than 3 mm thick sample, the combustion rate is less than 70 mm per minute; or extinguished before 100 mm mark.
V-2: the sample after 10 seconds of the two combustion, the flame extinguished within 60 seconds. Combustion can fall.
V-1: the two samples after 10 seconds of combustion, the flame extinguished within 60 seconds. Can not have a combustion fall.
V-0: the sample after 10 seconds of the two combustion, the flame extinguished within 30 seconds. Can not have a combustion fall.
  • NextPage:UL94 standard test procedures and requirements
  • Online Service
    Online sharing
    To sweep
    QR code
    爱乐透彩票 吉祥棋牌 河北11选5 爱乐透彩票网 河北11选5开奖结果 爱乐透彩票官网 河北11选5走势图 河北11选5 河北11选5 河北11选5