How can I tell if fire stopping is done properly?

Made-up seal in a block of 30 flats. Corridor 1, north wall, 60-minute blockwork. A 110mm plastic pipe goes through it. Somebody has packed round the pipe with grey foam from a can, the sort sold for gaps round window frames.

No label on it. Foam all the way round, so the hole looks full. But down the left side there is a dark gap about 4mm wide where the foam has shrunk back from the block. And there is no collar on the pipe.

To pass, that pipe needs a collar on the wall face and the gap cut out and filled with a tested seal, with a label next to it.

So the record line reads: corridor 1, north wall, 110mm plastic pipe, foam only, 4mm gap left side, no collar, no label, photo 9.

A survey writes a line like that for each of the 140 or so seals in a block this size.