AS Chemistry B (Salters) grade boundaries
H033OCR · June 2024 to June 2025
Check a mark
Add up your marks across every paper in a past series and enter the total. The chart and table below update to show what it would have got in every series.
Exam series
Enter a mark to see your grade.
Boundaries move every series, so treat this as a guide, not a prediction.
Every series
The minimum total mark for each grade. Entry code H033.
| Series | Max mark | A | B | C | D | E | Source |
|---|---|---|---|---|---|---|---|
| June 2025 | 140 | 94 | 79 | 65 | 51 | 37 | Board PDF, p7 (opens in a new tab) |
| June 2024 | 140 | 93 | 79 | 65 | 51 | 38 | Board PDF, p7 (opens in a new tab) |
These are overall raw-mark boundaries for the whole qualification. Component boundaries, and anything we don't hold yet, are in OCR's grade boundary documents. If a figure here doesn't match the board's document, the board's document is right.