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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
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Relative humidity5 Y# r) C* f7 {6 c0 ]
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)
% r, t. |) O- ^		60335-1(ed.4) & 61010-1(ed.2) & 60601-1(ed.2);am1;am2 & 60065(ed.7)
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+ u3 X. G- Q- y1 ?# rStandard(s):
$ T- _! {) j0 A  i: cIEC 60065/2001
2 e3 ?) }" L' Y; iIEC 60335-1/2001, E( l. a" F% [- F! R$ ~- w
IEC 60601-1/1988 + A2/1995; z$ T$ A5 ]3 W' |: G+ O2 u, M
IEC 61010-1/2001
8 W) L5 N* e+ F, W6 G  NSub clause(s):
) g9 R- b- r; W& @5 l( l3 [10.2! U4 o; _! h- d; M4 K
15.3; R9 D; W( u8 v. d# B
4.10
1 I. u: B5 B1 V9 Y1 A/ n6.8.2
' u+ k2 B! ~  zSheet N°:0 _$ x! f9 _7 N2 D% D
DSH - 546/ h1 g% ~/ o+ g
Subject: Relative humidity Key words:, O% r+ B3 [" P
- Relative humidity
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- Percentage
+ y5 P6 K6 O0 K- B8 R4 e+ i% ~- IECEE-CTL/193/INF; T3 w' |% ?/ r+ F/ {
Decision taken at the0 Q3 \. Y  e4 x7 y) b+ |, f: n1 d
41st CTL meeting.( J, Z; X5 v0 e4 c
Question:2 y/ l; h5 z( w, M6 a0 I( O
Various IEC standards require that specific tests be performed in a humidity chamber. The
, {+ Q. X8 T; O6 c2 a  u  M+ @) fspecification of the relative humidity is in several formats. How should the tolerance on the4 Y1 J: G& {+ h
relative humidity specification be interpreted?$ }& j5 c. \- ?
Decision:
1 I9 D5 \) ]1 B2 A) ~(1) Unless clearly noted otherwise, the tolerance specified for humidity is considered to
3 P5 ]- q9 V# |( G6 jbe in percent relative humidity, % RH.
; I# o1 [0 M: i: H5 t(2) It is intended that the set point of the humidity chamber controller be set within the4 J/ w' P+ e& R  I1 @$ L( O( v
specified range and that the humidity remains within the specified range.
5 v/ ]) V) D# e5 w(3) Confirmation that humidity is within the specified range shall be made by a humidity/ Y/ L$ x% P" J7 V# V
measuring instrument according to CTL DSH 251A.# u2 S5 {8 D* E8 Y

7 N- j6 \5 z  c5 F3 o. S% S[attach]77292[/attach]& \6 B/ G9 }8 F




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