John LeeI can remember those days well Alan.
As you comment steel making is a 24/7 process, not stopping to sleep or have have a day off.
This photograph shows the Steel Pant lab chemists on Christmas day c. 1976. From the left, Shift Chemist, Alan Thew; Sample Preparer, Billy Osbourne; Pig Iron Chemist, John Lee and Slag Chemist Paul Rutherford.
Happy days indeed.

Thanks to John Lee for sharing this picture Steel Pant lab chemists on Christmas day c. 1976.