39.Lead in micro-channel plates (MCPs) used in equipment where at least one of the following properties is present:

1. (a)

   a compact size of the detector for electrons or ions, where the space for the detector is limited to a maximum of 3 mm/MCP (detector thickness + space for installation of the MCP), a maximum of 6 mm in total, and an alternative design yielding more space for the detector is scientifically and technically impracticable;

2. (b)

   a two-dimensional spatial resolution for detecting electrons or ions, where at least one of the following applies:

   1. (i)

      a response time shorter than 25 ns;

   2. (ii)

      a sample detection area larger than 149 mm²;

   3. (iii)

      a multiplication factor larger than 1,3 × 10³.

3. (c)

   a response time shorter than 5 ns for detecting electrons or ions;

4. (d)

   a sample detection area larger than 314 mm² for detecting electrons or ions;

5. (e)

   a multiplication factor larger than 4,0 × 10⁷.

The exemption expires on the following dates:

1. (a)

   21 July 2021 for medical devices and monitoring and control instruments;

2. (b)

   21 July 2023 for in-vitro diagnostic medical devices;

3. (c)

   21 July 2024 for industrial monitoring and control instruments.