DSH 546 Relative humidity

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小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

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 9 R* I/ I: y8 F; _. x1 i+ k9 w

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)

! n8 Z! E0 d! KStandard(s):
8 W  W* g7 G% M7 NIEC 60065/2001
, l& |) v1 ]+ \( T) _- @( |: |# {IEC 60335-1/2001
1 R, s6 u8 f5 Y. p( XIEC 60601-1/1988 + A2/1995
IEC 61010-1/2001
$ d3 v/ P7 z2 o1 R8 RSub clause(s):
10.2
% _1 O: K# p; W15.3
4.10
' b* ^0 k& I* B; e6.8.2
Sheet N°:
DSH - 546
. C4 l! i0 A2 I, [' Y% @Subject: Relative humidity Key words:
8 @" ]) X( Z3 P$ }- ?. A- Relative humidity
) T9 k/ Y- t8 }$ l) z! j- Range
- Percentage
& e  \  ~, u! C* b, [  U- IECEE-CTL/193/INF
: u( J1 b/ C9 T% B. r, X' |Decision taken at the
41st CTL meeting.
: N9 k, c$ i. P; I% T8 pQuestion:
3 s) w! M% D' S3 ^7 n9 fVarious IEC standards require that specific tests be performed in a humidity chamber. The
# X1 C5 `; f6 K4 ]5 v3 j/ f( hspecification of the relative humidity is in several formats. How should the tolerance on the
3 B* t8 R& z' A. J5 W4 Srelative humidity specification be interpreted?
, y) U( m# c6 O$ B- E: Z9 [" YDecision:
" x5 ]# i' m& X( U3 r3 H3 M(1) Unless clearly noted otherwise, the tolerance specified for humidity is considered to
be in percent relative humidity, % RH.
( W' Q7 F" b8 k5 n; R9 Z* k( h. U(2) It is intended that the set point of the humidity chamber controller be set within the
" Y- i! G. d, \3 ?" D3 `: Q/ ]specified range and that the humidity remains within the specified range.
+ ?/ u1 n$ N5 m(3) Confirmation that humidity is within the specified range shall be made by a humidity
2 p7 K/ |9 b, n; k, dmeasuring instrument according to CTL DSH 251A.
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8 m7 S8 v$ M1 E( N6 R