The language Singapore works in
Singapore handles official paperwork in English, so English is the target here. A certified translation into English in Sheffield is produced from a scan, and your source document is never altered. What arrives is a bundle rather than a single sheet, and understanding what is in that bundle saves a good deal of trouble later on.
Three parts that need each other
A translated page on its own says only what someone typed. It becomes evidence when two other things sit beside it: a signed statement from the person who wrote it, and a copy of the paper they were looking at. Remove either one and the English text turns back into an assertion that nobody has to accept.
This is why the set is issued as a single object with the parts fastened together and counted. An official English translation in Sheffield is not a sheet of text with a stamp on it; it is a small, self-contained argument. Every element is there because a reader would otherwise have to come back and ask you for it.
What splitting it costs you
The temptation is real. An online form wants one file, a portal caps the upload size, or somebody at the far end asks only about a date of birth. So one page gets pulled out and sent. It looks helpful and it quietly removes everything that made the page worth reading.
The habit that avoids all of this is dull and cheap: submit the complete set every single time, in the order it was issued, whoever is asking and however narrow the question. If a size limit blocks you, reduce the quality of the scan rather than the number of pages. Nobody has ever been criticised for sending a whole file.
Cost and timing
The rate is £25 a page and the count is fixed from your scans before any writing begins. Standard work runs 2–3 business days, and the express route closes it in 24 hours. Both give you the same complete, numbered set. Sending everything in one go at the start is also what keeps the page count settled and the wait short.