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|  DSH 546
K/ F" J' X! `. Z, h
! V1 [; c# }; p+ w( ?2 e% \1 M | Relative humidity
8 l& i k2 b, m# C# P! Y) j | 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); o, E- A0 H; R. Z3 v( Z/ n
| 60335-1(ed.4) & 61010-1(ed.2) & 60601-1(ed.2);am1;am2 & 60065(ed.7)
" e: B% b. u2 Y6 K3 j) Y- Z. m! q |
) d. }8 m1 e& T8 A" S7 N% `Standard(s):- _9 _6 L$ ^( L0 G# G
IEC 60065/2001' C3 `% Y% s3 {
IEC 60335-1/2001
6 N+ W: b, b: T2 q% M* m1 T) ^IEC 60601-1/1988 + A2/19958 Y$ g) Q2 e" |4 v' Q( x: e3 f
IEC 61010-1/2001# }3 U/ ?* F! ^. M
Sub clause(s):. P% V" a+ Q2 f* X3 h
10.2
% X" o4 x; k/ p; S1 L$ q2 O15.3; e4 [/ S A1 B7 l
4.10
. I; c* l/ H/ a6 C x u! L" _1 v6.8.2
# E+ E& f; @# d2 b- Z8 e- T. N/ \Sheet N°:# c' K0 R) e! I9 N/ i3 {* P
DSH - 5464 ?3 g: a9 G/ v, C% f2 R: U
Subject: Relative humidity Key words:
* B) M! \' E' r1 E8 u3 K- Relative humidity
7 T3 j' Z F! F: \- Range
/ I6 C( i2 |0 E* z: j& x. [4 }- Percentage/ B7 V1 U G. C: h, ]3 A0 ?' l
- IECEE-CTL/193/INF6 H$ M# `* N! v, e2 y
Decision taken at the
& I; r8 F% y7 x- A41st CTL meeting.
. y8 L9 X" m6 NQuestion:. n/ h/ p" W% i4 S" q* L, b
Various IEC standards require that specific tests be performed in a humidity chamber. The9 u' `+ B8 [# a! c9 v2 H
specification of the relative humidity is in several formats. How should the tolerance on the
# z0 D+ F" T5 t& ^+ X* o. krelative humidity specification be interpreted?. C( j7 z; Z- E3 N7 h7 R
Decision:
1 S8 _' c2 {3 y! c5 c% M(1) Unless clearly noted otherwise, the tolerance specified for humidity is considered to
- j" A" |/ M1 u/ A3 |be in percent relative humidity, % RH.# v' L- c7 B! J7 X# Z. [6 [6 D) I; c
(2) It is intended that the set point of the humidity chamber controller be set within the' s3 N, U% d0 K8 H( c
specified range and that the humidity remains within the specified range.
/ L7 \" T$ a: }+ c( ~(3) Confirmation that humidity is within the specified range shall be made by a humidity
1 I$ C/ n) I/ q7 `& Kmeasuring instrument according to CTL DSH 251A.
; T+ z, p: T) G: G H' t
$ b @+ @5 e4 J3 q5 w6 V+ r* K4 n1 O0 w6 _+ c: C- l9 o1 f2 c
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