There are a lot of abbreviations used in standard numbers. A useful list of common ones and what they mean can be found on the BSI website. The beginning of standard numbers usually indicate the Standard Organisation who published it
- BS - A British Standard will start with BS. You may also see BS EN or BS ISO - this indicates that the standard started out as a European (EN) or International (ISO) standard, and has now been adopted as a British Standard.
- BS ISO 2789:2022 - TC - This standard is an ISO standard which has been adopted as a British Standard, published in 2022 and includes tracked changes so you can see what has changed from the previous edition
- BS EN 14067-5:2021 - This standard is an European Standard which has been adopted as a British Standard and it comes in various "parts" (this being part 5). It was published in 2021. Individual parts can have different years of publication.
- PAS - If you see this in the standard number it means it is a Publicly Available Specification. These are fast-tracked standardisation documents written in collaboration with Standards Organisations experts which define good practice for a product, service or process. So if you can't find a main standard - have a look and see if a PAS is available.