Fire door sign on door leading edge

[Hyperion]

Is this acceptable? I always thought that fire door keep shut/closed signage should be visible on both sides of the door leaf. This was the only signage on the fire door on the leading edge of the door. 
unfortunately it will not let me upload an image. 

[Neil ashdown]

https://assets.publishing.service.gov.uk/media/67d17064a005e6f9841a1d50/Approved_Document_B_volume_2_Buildings_other_than_Dwellings_2019_edition_incorporating_2020_2022_and_2025_amendments_collated_with_2026_and_2029_amendments.pdf  Appendix C Fire Doorsets  C11: Fire Door Signs. Complying with BS 5499-5. All fire doorsets should be marked on both sides, except fire doorsets to cupboards and service ducts, which should be marked on the outside.  

https://www.firecode.org.uk/Code_of_Practice_hardware_for_fire_and_escape_doors_issue_5.pdf  Fire Safety Signs page 104 to 112. 

[Mike North]

ADB 

C12 The following fire doorsets are not required to comply with paragraph C11.

a. Doors to and within flats and dwellinghouses.

b. Bedroom doors in ‘residential (other)’ (purpose group 2(b)) premises.

c. Lift entrance/landing doors.