Does the figure 8 blind need Lockout tag when it is in pass-through state?

For "Lockout tag", it should be understood as an energy isolation Lockout tagout (LOTO). Once the blind plate is involved in the energy isolation purpose, it should comply with the Lockout tagoutmanagement requirements. In some cases, there may be a locked state (LO) or locked state (LC) for a period of time, both of which also require a Lockout tag.
Safety management of blind plate In order to strengthen the supervision and management of production safety, standardize the behavior of pumping and plugging blind plate, ensure the safety of personnel, and ensure the safety of production operation and maintenance of production equipment. The pass and plug of the 8-word blind plate are similar to Lockout LO and Lockout LC, and also Lockout tag management, but there are differences between the 8-word blind plate and the ordinary blind plate, and the enterprise can draw up specific management content by itself.
It is necessary to establish and perfect the record list of blind plate pumping and plugging whether it is 8 figure blind plate or ordinary blind plate.
Basis I: Safety Code for Special Operations of Hazardous Chemical Enterprises (GB30871-2022)

Blind plate plugging operation

1 Before the operation, the hazardous chemical enterprise shall draw the blind plate location map in advance, number the blind plate in a unified way, and assign special personnel to conduct the operation in a unified way.
2 The operation unit shall carry out the blind plate plugging operation according to the location map, and mark each blind plate. The number of the label shall be consistent with the blind plate number on the location map. The hazardous chemical enterprise shall confirm and make records one by one. For your reference!