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标题: DSH 546 Relative humidity [打印本页]
作者: 小米    时间: 2012-11-8 18:27
标题: DSH 546 Relative humidity
DSH 546( O; Q, h0 F% O
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Relative humidity$ u4 ^8 a# V: |4 q$ Z' n2 s
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)+ i2 U3 @# s7 S9 [
60335-1(ed.4) & 61010-1(ed.2) & 60601-1(ed.2);am1;am2 & 60065(ed.7)
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2 D; Y1 i; J# x/ Q# yStandard(s):
/ _" o" w: X! Z) h# yIEC 60065/2001
8 c, A- A3 j1 I6 G( w1 L: m# w* I8 yIEC 60335-1/20011 u, K. O& [& w& A
IEC 60601-1/1988 + A2/19954 N. P* Z) W2 U7 {1 V
IEC 61010-1/20015 \) i( [  z3 B0 O
Sub clause(s):- v: d/ v8 P6 ]' o
10.2' z5 A% A  R* n" t5 X
15.3- G$ |, c( }# h' s1 I, g& q
4.10
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Sheet N°:! P: _) p( P0 [/ p8 u$ e* t* V
DSH - 5467 K& v) z* {8 N+ S# |# l2 R7 m; o: o
Subject: Relative humidity Key words:/ X3 S, Z% C0 G2 t
- Relative humidity- G/ H1 L8 m% q! `: [% r
- Range
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- IECEE-CTL/193/INF
8 B; d- j- Y$ j9 ]' v; H, b, zDecision taken at the
1 ]( K* [; O$ d( ]* A7 s4 q8 c' v41st CTL meeting.
0 `7 ]6 V% d7 {; Q$ J0 qQuestion:7 K$ h* |- W1 `: _3 Z$ d
Various IEC standards require that specific tests be performed in a humidity chamber. The$ h8 F" G  w/ D" z' [4 q
specification of the relative humidity is in several formats. How should the tolerance on the' N% f- M- J9 j( \$ S$ h
relative humidity specification be interpreted?
; k9 t4 V# N, r' H# ?% C( H, kDecision:
! {' z  n  _8 E  D% K+ v(1) Unless clearly noted otherwise, the tolerance specified for humidity is considered to7 r3 @* U% v, ?8 Y' [
be in percent relative humidity, % RH.
) I* |5 V2 H$ S0 T) u(2) It is intended that the set point of the humidity chamber controller be set within the' p% [: }# X# V% E' _* z# p4 f3 s
specified range and that the humidity remains within the specified range.# `3 _% A) R* I. k
(3) Confirmation that humidity is within the specified range shall be made by a humidity  }( {4 B9 ~, E4 a+ ?# n
measuring instrument according to CTL DSH 251A.
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