What is a PCB mark and what does it
look like?
The PCB mark (see Figure 1) is a label with black
striping around the border that contains certain information
specified in the regulations that apply to PCB
Items (i.e., any manufactured item containing or contaminated with PCBs). There are two marking
formats, “Mark ML” and “Mark MS”; the only difference
between the two is the size of the mark. PCB
Mark ML is a 6" x 6" square; PCB Mark MS is a 1" x
2" rectangle. The text of the mark includes the warning
“Caution Contains PCBs,” instructions in case of
accident or spill, and the telephone number of the National Response Center. The PCB mark must
have either a yellow or white background.
Where is the PCB mark required to be
attached?
The mark must be placed in a prominent position on
the exterior of a PCB Item so that it can be easily
read. The mark must also be sufficiently durable to
equal or exceed the life of the PCB Item. If Mark ML
is too large for the item, it may be proportionally reduced
in size to a minimum of 2" x 2". If a mark
smaller than 2" x 2" is required, Mark MS may be
used. If Mark MS is too large, it may be reduced in
size proportionally to a minimum size of 1 cm x
2 cm. Both marks are commercially available from
vendors of industrial placarding and health and
safety supplies.
What types of PCB Articles and PCB
Equipment require marking?
- Items requiring marking include:
- PCB Transformers (i.e., transformers with >500
ppm of PCBs),
- PCB Large High voltage capacitors,
- PCB Large Low voltage capacitors,
- PCB Equipment (containing any of the three articles
listed above),
- voltage regulators with>=3 lbs of <=500 ppm of
PCBs,
- electric motors with coolants 50 ppm of PCBs,
- hydraulic systems with hydraulic fluids 50 ppm
of PCBs,
- heat transfer systemswith fluid 50 ppm of PCBs.
|
