DSH 546 Relative humidity

小米

广东安规检测
有限公司提供：

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 0 @& u8 Q+ q6 m6 f

Relative humidity ( i, a9 Z# X$ B( E9 _" R- C. A$ 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)

60335-1(ed.4) & 61010-1(ed.2) & 60601-1(ed.2);am1;am2 & 60065(ed.7) 8 j" y# U1 {1 `. S1 `

, K! q/ o) E& l. x% E* ~7 x( C& lQuestion:
) T& d1 `- y+ f/ b; [( KVarious 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
relative humidity specification be interpreted?
6 }3 n' F* |1 U, K2 |( w4 qDecision:
(1) Unless clearly noted otherwise, the tolerance specified for humidity is considered to
4 O! K$ u" s6 k# `) _5 n2 C" Hbe in percent relative humidity, % RH.
) K) o! L( k3 j(2) It is intended that the set point of the humidity chamber controller be set within the
" Q0 j2 W$ O  j" \) p5 m4 `specified range and that the humidity remains within the specified range.
* `6 S- N, s# o, E6 y+ m( |(3) Confirmation that humidity is within the specified range shall be made by a humidity
, U2 D  q/ ]9 e" ^( Smeasuring instrument according to CTL DSH 251A.

# b' R  \) t$ ^! c- n% d
2 x' r$ }+ B) B5 h" y. l5 [# `