迷儿 发表于 2017-10-5 01:31

UL黄卡里面的（f1）

请问下，UL黄卡里面有一个(f1)，网上说是 Suitable for outdoor use with respect to exposure to Ultraviolet Light的意思，参考UL746C。。但是我查遍了UL746C也没有看到标准有对（f1）的解释定义啊。请大佬提供下这个定义的权威出处！

H-RH 发表于 2017-10-5 02:03

746C 没有解释 f1 或 f2 级别之定义, 只有解说

Ultraviolet Light Exposure (section 25) 及 Water Exposure and Immersion (section 26) 之细则

f1 或 f2 级别之定义可参考这里:
https://plastics.ulprospector.com/properties/UL746_C

Outdoor Suitability - UL 746C

Materials considered suitable for outdoor use have been subjected to ultraviolet (UV) light exposure and/or water immersion. UV exposure is performed by using either a twin-enclosed carbon weatherometer for 720 hours, or a xenon-arc weatherometer for 1000 hours. Water immersion testing is performed for 7 days at 70°CSpecimens are tested before and after exposure for flammability, mechanical impact and mechanical strength. Materials whose properties are not significantly degraded in any of these areas are considered to have passed and are suitable for outdoor use.
RatingDescription
f1The material has met both UV and water immersion requirements.
f2The material has met either UV or water immersion requirements, or has only been partially tested.


迷儿 发表于 2017-10-5 03:58

H-RH 发表于 2017-10-5 02:03
746C 没有解释 f1 或 f2 级别之定义, 只有解说

Ultraviolet Light Exposure (section 25) 及 Water Expo ...

Goodjob！Thanks.

dashan168 发表于 2017-10-6 10:06

学习了。

joehuo 发表于 2017-10-9 10:24

學習了:handshake

jsq123 发表于 2017-10-9 11:48

迷儿 发表于 2017-10-5 03:58
Goodjob！Thanks.

well done!

liang1980 发表于 2017-10-10 07:58

学习中…………安规网就是好，好， 好

why2325 发表于 2017-10-10 16:22

厉害了，牛。

why2325 发表于 2017-10-10 16:22

厉害了，牛。

y5257942 发表于 2017-10-10 16:32

厉害了，牛！
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