DSH 546 Relative humidity

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小型摆管淋雨试验机

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灯具防风罩

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家电温升测试角

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家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

DSH 546 * u5 l; j  E$ J( |+ u$ y3 ^" {

Relative humidity

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)

60335-1(ed.4) & 61010-1(ed.2) & 60601-1(ed.2);am1;am2 & 60065(ed.7) ) M9 ?* b. K7 m, G3 y* D! G1 s

Standard(s):
# p2 L8 K! ?, a) l# J0 N% p: L7 |' QIEC 60065/2001
IEC 60335-1/2001
% O$ E* J$ q2 F6 I! P7 bIEC 60601-1/1988 + A2/1995
+ m/ n" @7 f5 ]; s2 R; }IEC 61010-1/2001
Sub clause(s):
: @" B/ C5 S% P, e& V10.2
15.3
4.10
9 Q. E) x  f# ]9 R- |+ T# b1 F6.8.2
2 B. u" Y, ~! m3 v+ T% ASheet N°:
- E3 r4 s5 ^+ o9 z8 a- SDSH - 546
Subject: Relative humidity Key words:
- Relative humidity
- Range
- Percentage
- IECEE-CTL/193/INF
0 ?! f- S, C/ |* kDecision taken at the
41st CTL meeting.
6 V6 L9 ?: g  r5 H7 r' EQuestion:
Various IEC standards require that specific tests be performed in a humidity chamber. The
specification of the relative humidity is in several formats. How should the tolerance on the
. c  l9 M7 u: B1 H" Vrelative humidity specification be interpreted?
( u2 a7 _4 R  J$ UDecision:
(1) Unless clearly noted otherwise, the tolerance specified for humidity is considered to
be in percent relative humidity, % RH.
% ]4 d7 \/ Z$ z7 ^: H(2) It is intended that the set point of the humidity chamber controller be set within the
8 Z& r2 ]+ ]4 |  O0 y; }0 jspecified range and that the humidity remains within the specified range.
+ ?3 D& p+ ^& x' L1 Q(3) Confirmation that humidity is within the specified range shall be made by a humidity
$ L+ n$ G1 D, T% s6 Z7 }measuring instrument according to CTL DSH 251A.

" |+ K6 g3 a. `$ c3 Z: [
5 ]3 C& g5 y; {+ D