DSH 546 Relative humidity

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小型摆管淋雨试验机

IPX5X6X7喷水试验机

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GB1002插头量规

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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

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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 + q/ h  O7 W+ o1 D% Q, e) H' g

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) - l: H+ y! @) c1 f( q& D

Question:
1 V  T2 r0 F6 Q2 i4 q0 u# EVarious IEC standards require that specific tests be performed in a humidity chamber. The
8 o! |8 T$ B5 A7 f& ispecification of the relative humidity is in several formats. How should the tolerance on the
* U+ ^/ x: @6 ]: j4 G! Q2 ?relative humidity specification be interpreted?
# a, T  ?& g$ }Decision:
(1) Unless clearly noted otherwise, the tolerance specified for humidity is considered to
be in percent relative humidity, % RH.
  \% e: A6 z" D1 Y(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.
' \( z+ v$ l. F* }(3) Confirmation that humidity is within the specified range shall be made by a humidity
measuring instrument according to CTL DSH 251A.


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