标准22.57原文:The properties of non-metallic materials shall not degrade from exposure to UV-C radiation generated from UV sources provided for microbiological control within the appliance such that they no longer comply with this standard. This requirement does not apply to glass, ceramics or similar materials.
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: e n% _: G5 M% `: V/ q; \Annex T provides requirements for non-metallic materials subject to direct or reflected UV-C radiation (100 nm to 280 nm) exposure and whose mechanical and electrical properties are relied upon for compliance with this standard. This annex does not apply to glass, ceramic and similar materials.
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" S) T6 Q3 ^& k4 m对以上面标准有几个疑问,现在有个产品带UV-C灯起到杀菌消毒做用% g6 B2 u5 u7 m- [! { m; @
1. 对于for microbiological control within 怎么解析?) P S5 P- W- F% U, G
2. 是不是器具内部所有塑料部件被direct or reflected的都需要做这个测试。( ~4 D- A9 b3 v+ y% L7 G5 a# v
3. 塑料部件可以是指:塑料外壳,内部线外套,热缩套管等所有塑料部件吗?
0 i% ~$ } N" |/ |9 }3 O4. 这项测试咨询过一些机构,发现他们按附录T要求都做不了,有推荐几家机构可以做的吗?要有CNAS资质,最好是在珠三角。4 x( R% _& Y- V% Q, l( J
5. 若把器具内部UV-C所照射到的部件表层都喷上glass或ceramic材料,测试是否还需要做? g+ w0 L, V, Z) J, k8 e, @2 g
另外若器具有开孔可以在外面看到一些灯光,那塑料外壳外部是否还需要喷上glass或ceramic材料,按理塑料外壳外部应该不会被direct or reflected?: X! a7 z9 _# g
6. 是否还存在和UV-C一样有杀菌消毒的灯具,可以替换就不需进行这项测试。+ D6 M$ V, V0 \" r
7. 若把UV-C灯装在一个U型管内,开口一向和塑料外壳结合,这时塑料部件还需要做附录T吗?
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还请了解或遇到的大神帮忙解答下,或有更好方法避开这项测试的还请指教,万分感谢。
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