Read beyond the number.
Work through the document one field at a time.
Start with the complete document
Keep the issuing organisation, report reference and date together. A cropped result can leave out useful context.
Read the sample description
Record the sample identifier and any batch information shown. Note when a field is absent or marked unknown.
Identify the test
Identity, assay and impurity tests answer different questions. Read the method and units before comparing results.
Keep conclusions within scope
Check the acceptance criteria and accompanying notes. Avoid treating one result as evidence of every quality attribute.
What if information is missing?
Record the gap and ask the issuing organisation for clarification. Keep unknown details separate from information the document actually provides.
Can I compare two percentages directly?
First check that the measurements, methods and units are comparable. Matching symbols alone are not enough context for a comparison.
Where should I look for the source?
Use the report’s issuing organisation or the original publication. Check the document reference and date against that source where available.