EXTRACTION THIMBLES:

Extraction Thimbles consist of         Grade            Material Max.           Temperature Res.

  cellulose fibres                     Nr. 30            cellulose                 120

  micro-glass fibres                   ET/401            cellulose                 120

  micro-quartz fibres                  Nr. 35            cellulose                 120

                                       Nr. 40            micro-glass               500

                                       ET/MG 160         micro-glass               500

                                       T 293             micro-quarz               900

                                       ET/MK 360         micro-quarz               900

TOLERANCES

Thimble Type           Cellulose Fibre          Micro-Glass Fibre           Micro-Quartz Fibre

Innternal diam. mm         +0 / -3                   +1 / -3                     +0 / -3

Thimble height mm            ±1                     ±1                          ±1

Wall Thickness mm         1.5±0.5                  2±0.5                       2±0.5

Ash Content %                < 0.1                    -                            -

Penetration %DOP             -                      < 0.002                       < 0.002

(0.3 μm)

Temperature °C              -                      500 max.                      900 max.

Thimbles with other tolerances are available upon request



CELLULOSE FIBRE THIMBLES

Filter thimbles made of cotton fibres with high alpha cellulose content offer high mechanical strength and and excellent retention capacity. Particularly suitable for the extraction of organic combinations out of reaction mixtures, food, natural substances, lacquer and binder analysis in paint colours, dust and tar determination in gases.



We can offer you two different thimbles geometries:

       1. with defined internal diam. x external length, round bottom acc. to DIN 12449 (grades No. 30 and ET/401)

       2. with defined external diam. x external length, flat bottom (grade No. 35)



THIMBLES ACC DIN 12 449

Internal diam.            Thimble Height          Wall Thickness           fitting extractors with a

     mm                        mm                     mm                      nominal volume ml

     22                        80                     1.5                            30

     33                        94                     1.5                           100

     33                       205                     1.5                           250

     48                       230                     2.0                           500

     57                       315                     2.5                           1,000



STANDARD SIZES

Internal diam. x height in mm

GRADE NR. 30 AND ET/401 (round bottom)

10 x 110           16 x 100           19 x 90           20 x 80           22 x 80           22 x 100

25 x 80            25 x 100^*          25 x 125          26 x 60           26 x 80           26 x 80

28 x 100           28 x 120           30 x 80           30 x 90           30 x 100          33 x 80 ^**

33 x 90            33 x 94^*           33 x 118          33 x 205          35 x 120          35 x 150

37 x 130           40 x 150           43 x 123^*         48 x 145          48 x 200          48 x 250

53 x 145           60 x 120           60 x 180          60 x 275          75 x 200          75 x 250

* suitable for Büchi Extraction System B-811

** suitable for Gerhard Soxtherm Automatic or Foss-Teactor Auto System

Also available with double wall thickness. Packing in boxes of 25 pcs. each.