MEM Grid Boxes and their Integrated Innovations

Several innovations in the multipurpose EM (MEM) grid boxes make it easy to use, have enabled greater secure storage, and integrated the documentation.

grid being placed in #161-32

grid being placed in #161-32

These new innovations are:

  • “Tree” shaped TEM grid storage cavity almost completely removes the possibility of damaging the TEM grids. There is a separating wall between the grid storage cavity and the tweezers cavity, so the tweezers will only be able to grip the edge of the grids.
  • There is an additional slider with a window between the cover and grid storage boxes. This exposes only 4 grids at a time and does not allow grids to fall or “jump” out of the storage box.
  • An integrated grid storage record card is placed in a dedicated slot on the back of the MEM grid box
  • The body of the storage box is made of white plastic, which provides a good contrast. The coverlid and the slider with a window are made of clear plastic, enabling good visibility.

Versions of MEM Grid Boxes

Two versions of the MEM grid boxes are available:

  • 161-96: store up to 96 grids, size 81 x 54 x 10 mm
  • 161-32: store up to 32 grids and up to 8 blocks, size 81 x 54 x 14 mm


1. Record card is stored below the box.

record card

2. Only 4 holes are exposed at a time when the lid and plastic cover pieces are exposed.

4 holes

3. The tweezers insertion slot grips the edge of the grid.

tweezer insertion

a. Mesh grids can be gripped by straight or curved tweezers


b. Slot grids are best gripped using curved tweezers

curved tweeze

4. 161-96 contains 96 grids
    161-32 contains 32 grids and 8 blocks





5. Small, semi-thin sections can be stored by sliding into the block cavity.

block cavity

This information has been sourced, reviewed and adapted from materials provided by Ted Pella, Inc.

For more information on this source, please visit Ted Pella, Inc.


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