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 . a4 T0 l1 R( L$ h+ d3 p  m; P

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) 8 R5 i/ x$ a8 N" x

Standard(s):
3 Y, }1 p- t/ J9 bIEC 60065/2001
IEC 60335-1/2001
IEC 60601-1/1988 + A2/1995
5 U7 q& T3 D, S! q. q# yIEC 61010-1/2001
Sub clause(s):
# f' ]* }2 p& C" F# Z10.2
15.3
4.10
6.8.2
Sheet N°:
4 A6 g3 ~- L. {5 U) A7 r2 C$ BDSH - 546
Subject: Relative humidity Key words:
  G) W- Y- |6 v: c0 D! L+ X4 R- Relative humidity
- Range
6 E/ i7 K6 c& y/ Q- Percentage
- IECEE-CTL/193/INF
Decision taken at the
41st CTL meeting.
# ^0 r; \: h/ aQuestion:
0 [9 N6 S: u4 |9 U& pVarious IEC standards require that specific tests be performed in a humidity chamber. The
' F0 g5 Y4 ~" s; ^: hspecification of the relative humidity is in several formats. How should the tolerance on the
relative humidity specification be interpreted?
Decision:
9 f& Z# F: K& _0 C7 i8 d(1) Unless clearly noted otherwise, the tolerance specified for humidity is considered to
be in percent relative humidity, % RH.
( J0 {5 g$ W7 X1 h(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.
2 X4 O9 s; B$ b(3) Confirmation that humidity is within the specified range shall be made by a humidity
measuring instrument according to CTL DSH 251A.


' I: U; ~5 I- P