Freedom from Holes (Water leak method) ISO 23409:2011 – Clause 12 Visible defect ISO 23409:2011 – Clause 14 Length ISO 23409:2011 – Clause 8.3.1 Width ISO 23409:2011 – Clause 8.3.2 Thickness ISO 23409:2011 – Clause 8.3.3 Burst Volume and pressure ISO 23409:2011 – Clause 11 Package Seal Integrity ISO 23409:2011 – Clause 14