DSH 546 Relative humidity

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灯具防风罩

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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 2 h* F' r& v& F1 x' h: }' E

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) 9 W4 L3 G4 I) E) a9 D* l' M

60335-1(ed.4) & 61010-1(ed.2) & 60601-1(ed.2);am1;am2 & 60065(ed.7) ! T9 x# C7 q# ?( v+ p8 ]

Question:
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
& V1 ]& j/ F6 |: trelative humidity specification be interpreted?
Decision:
(1) Unless clearly noted otherwise, the tolerance specified for humidity is considered to
: @: p) ^7 H/ Xbe in percent relative humidity, % RH.
+ F/ Y+ ~$ ]; x. t6 h& r$ N. p2 |(2) It is intended that the set point of the humidity chamber controller be set within the
specified range and that the humidity remains within the specified range.
(3) Confirmation that humidity is within the specified range shall be made by a humidity
measuring instrument according to CTL DSH 251A.
) j& L. }+ ~( H
3 s, x  U1 T. x) t$ `( N