UL94标准.pdf

UL94 标准
介绍 UL94
• UL94 HB flammability standard (UL94 HB 可燃性标准)
o Requirements for HB (HB 的要求条件)
• UL94 V-0, V-1, V-2 flammability standard (UL94 V-0, V-1, V-2 可燃性标准)
o Requirements for V-0 (V-0 的要求条件)
o Requirements for V-1 (V-1 的要求条件)
o Requirements for V-2 (V-2 的要求条件)
• UL94 5VA & 5VB flammability standard (UL94 5VA & 5VB 可燃性标准)
o Requirements for 5VA (5VA 的要求条件)
o Requirements for 5VB (5VB 的要求条件)
• UL94 criteria summary (UL94 判定标准摘要)
• Glow Wire testing
• Obtaining material recognition (取得材料认证)
• UL test descriptions (UL 测试描述)
• UL file numbers for RTP Company (RTP 公司的 UL 档案号码)
• Requesting a UL Yellow Card from RTP Company (向 RTP 公司要 UL 黄卡)
UL 94 HB flammability standard(UL94 HB 可燃性标准)
Specimen 试片
Length 125 mm (5 in) x Width 13 mm ( in) x Thickness [typically mm (1/16 in)
or mm (1/8 in) or mm (1/4 in)].
长 125mm(5")X 宽 13mm(1/2")X 厚度[一般为 (1/16")、 (1/8")或 (1
/4")厚]
Procedure 程序
1. Three specimens of each thickness are tested after conditioning for 48 hours at
23 degrees C and 50% RH.
每一种厚度准备了三个试片，测试前先在 23℃和 50%相对湿度下放置 48 小时。
2. Each specimen is mounted with its long axis horizontal and its short axis at a 45
degree angle.
每一试片以长轴呈水平、短轴呈 45°方式固定。
3. Each specimen is marked with two lines, 25 mm and 100 mm from one en