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标题: DSH 546 Relative humidity [打印本页]
作者: 小米    时间: 2012-9-9 15:40
标题: DSH 546 Relative humidity
DSH 546: J5 j+ g, q8 B) X  l: V3 I

& O6 O: F" {( T3 h6 v3 I+ P( {		Relative humidity
  A0 d9 ?& P8 A: Q$ {' r		10.2 (IEC 60065/2001) 15.3 (IEC 60335-1/2001) 4.10 (60601-1/1988 +A2/1995) 6.8.2 (IEC 61010-1/2001). Z( k5 N( p" I7 H* L9 g
60335-1(ed.4) & 61010-1(ed.2) & 60601-1(ed.2);am1;am2 & 60065(ed.7)
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Question:
# |& [7 p- d3 s5 A! B  N: AVarious IEC standards require that specific tests be performed in a humidity chamber. The  h" c/ i7 f7 C9 @' _
specification of the relative humidity is in several formats. How should the tolerance on the
3 D0 Q& O% T* ~relative humidity specification be interpreted?
! r1 V2 d5 y2 C3 t' GDecision:
8 D3 j* b( e# f% b2 ]5 m(1) Unless clearly noted otherwise, the tolerance specified for humidity is considered to) w0 b8 q; X+ `0 F! Z
be in percent relative humidity, % RH.
# S# n2 @! S, K# l% p  J(2) It is intended that the set point of the humidity chamber controller be set within the
) I: i9 ?9 t& \7 B: r- w3 cspecified range and that the humidity remains within the specified range.( A$ x; M& S7 d1 f
(3) Confirmation that humidity is within the specified range shall be made by a humidity
# D3 u3 n1 T( c: r+ Cmeasuring instrument according to CTL DSH 251A.
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