DESICCANTS and ACCESSORIES”


  

 

Humidity indicators and viewing windows

Humidity indicators show whether a critical level of moisture has been reached or exceeded in packaging. In combination with desiccants, they reflect the climate within the closed barriers of packaging and thus permit conclusions to be drawn regarding the state of sensitive packed goods. Humidity indicators consist of white, absorbent paper that is impregnated with a variety of coloured salt solutions in different areas. The moisture content of the impregnated indicator fields changes according to the relative humidity (RH) of the surrounding air – and they thus also change colour.

The colour changes from blue to pink with rising relative humidity and vice versa with falling humidity.

As a simple and economical aid, humidity indicators have a proven track record, with millions having been successfully used to provide packaging security. Under standard conditions, the permissible tolerances regarding indicator accuracy are +/- 5% relative humidity.

Under extreme temperature conditions, however, stronger variance may occur. Humidity indicators are also produced to comply with a variety of military specifications (TL, MIL, AFNOR).

We offer a wide range of humidity indicators in a variety of sizes, shapes and indicator areas, some of which have self-adhesive labels.

Typical areas of use are:  

  • electronics,
  • optical instruments,
  • export packaging,
  • packaging of bulk materials, and
  • military goods/metals.

 

Humidity indicators

Reversible indicator cards acc. to TL 6685-0003

Part No. Indicates (%RH) Supply-No. Dimensions Language Packaging
3542 30,40, 50 % r.F. 6850-00-752-8240 50 x 76 mm D 125/tin
3711 30,40, 50 % r.F. 6850-00-752-8240 50 x 76 mm E 125/tin
3700 30,40, 50 % r.F. 6850-12-152-8021 25 x 40 mm D 500/tin
3579 30,40, 50 % r.F. 6850-12-152-8021 25 x 40 mm E 500/tin
3552 20-80% 6685-12-194-4969 50 x 160 mm D+E+F 500/tin
3551 8% - 82 x 82 mm D 625/tin


Reversible indicator card for electronics and export packaging

Part No.. Indicates (%RH) Supply-N0. Dimensions Comments Packaging
3710 5, 10, 15 % r.F. - 50 x 76 mm JEDEC 125/tin
200005295 5, 10, 15 % r.F. - 50 x 76 mm JEDEC 125/tin
3572 10,20,30,40 % r. F. - 50 x 76 mm SMD 125/tin
3574 10 - 30 % - 50 x 76 mm   125/tin
3580 20 - 40 % - 50 x 76 mm   125/tin
3561 10 - 60 % - 50 x 76 mm   125/tin
3555 8 % - 50 x 60 mm   300/tin
8522 40 % - 25 x 35 mm   7000/ roll, self-adhesive


Irreversible indicator cards

Part No. Description Supply-No. Dimensions Comments Packaging
5272 Irreversible indicator 50-90% - ca. 76 x 114 mm MX 56789 50/tin
3537 Irreversible indicator 50-90% + reversible 10-100% - ca. 114 x 114 mm MCX 56789 25/tin


All humidity indicator cards are delivered in reclosable tins with desiccant bags and are thus serviceable for 5 years.

Viewing Window

Large Viewing Window

The Herrmann window has been specially developed for us in flexible barrier films (PE or aluminium composite foils). The viewing window can be supplied with a variety of indicator cards. It offers easy and reliable installation. A screw-in tool is included in the scope of delivery. The Herrmann window complies with TL 6685-0003.

Small Viewing Window

Small viewing windows allow monitoring of the relative humidity within closed containers. Indicators with a diameter of 20 mm and a variety of indicator ranges can be inserted behind the viewing window.

Large humidity viewing window Ø120mm for indicators with Ø90mm, export design

Part No. Indicates (%RH) Supply-No. Packaging
Z004101 30,40,50 % - 12/PE, 48/box
Z004103 40% - 80% - 12/PE, 48/box
Z004117 no indicator - 12/PE, 48/box
Z004104 Viewing window for packed goods w/o indicator - 12/PE, 48/box


Large humidity viewing window Ø120mm for indicators with Ø90mm, with split PIN and realiability level acc. to TL 6685-0003

Part No. Indicates (%RH) Supply No. Packaging
Z004118 30,40,50 % r. F. 6685-12-181-2445 10/paper sleeve, 50/drum
Z004102 20% - 80% 6685-12-337-1231 10/paper sleeve, 50/drum


Small humidity viewing window, waf 35mm for indicator with Ø20 mm, with R 3/4" thread

Part no. Indicates (%RH) Supply-No. packaging
3640 30,40,50 6685-12-166-1928 class, L 16mm
3625 30,40,50 - class 1, L 28mm
10356 30,40,50 6685-12-339-9465 L 16mm, emc variant
3605 30,40,50 6685-00-618-1822 L 16mm, brass




 

Small humidity viewing window for indicator Ø30 mm, with 1,4375" thread

Part No. Indicates (%RH) Supply No. packaging
3630 20, 30,40,50 % RH 6685-01-176-0374 SW 48mm
3633 20, 30,40,50 % RH - Ø47 mm

 

 

 

Small humidity viewing window with M18 thread

Part no. Indicates (%RH) Supply-No. Packaging
9116 30,40, 50 - WAF 25

Replacement indicators for viewing window




 

Replacement indicators for small viewing window Ø20mm

Part no. Indicates (%RH) Supply-No. Packaging
3334 10, 20, 30 6685-12-182-8571 100/PE
2332 30, 40, 50 6685-12-306-1324 100/PE  
3540 40 - 100/PE


CDF humidity indicators - cobalt dichloride free

Part No. Description Dimension Packaging Fig. No
200014484 CDF electronic indicator ; J-DEC (5,10,60 % RH) 50 x 76 mm 125/D, 5000/KAR 7
200014541 CDF electronic indicator; J-DEC SS (10,20,30,40 % RH) 50 x 76 mm 100/D, 4000/KAR 8


CDF humidity indicators - cobalt free

Part No. Description Dimensions Packaging Fig. No
200014484 CF electronic Indicator CF (5,10,60 % RH) 50 x 76 mm 125/D, 5000/KAR 9
200014541 indikator-card; (10,20,30 und 40% RH) 50 x 76 mm 100/D, 4000/KAR 10
200015134 Indikator-card; (10-60% RH) 40 x 120mm 200/D, 500/KAR