"The third generation changes published in ISO 17712: 2010 addressed technical issues, added testing for tamper evidence and established an 18 month transition buffer after publication for critical issues.
Most of the technical changes that affect accredited testing labs, which must have ISO 17712 included in their scope of competence: the changes clarified test fixture designs and added specificity to the test procedures. Another technical change, reflecting user experience, established an 18mm minimum widest diameter for bolt seals. ISO/PAS 17712 had addressed seal diameter as a functional requirement and the industry norm tended to be 17mm. The 18 month transition buffer applied to the 18mm requirement to accomodate manufacturer's tooling requirements and particularly to allow seal inventory adjustment throughout bolt seal supply chains.
Testing for tamper evidence is the most important change since addition of the normative Annex A. Customs regulators in the European Commission approached ISO and expressed strong interest in tamper testing and vetting of security seals. ISO TC 104 leaders decided that WG8 would work with the EC to address their concerns. All parties shared a goal: to facilitate maintenance of a common global regime for security seals. "
Additionally, seals will also be required to have markings of indicative ("I"), security ("S") and high security ("H") on each seal. These classifications will be determined by certified testing bodies such as SGS Malaysia, and Dayton Brown (from the US).
By March 2012, all seals all ISO 17712 compliant seals must be certified as tamper evident, giving companies the peace of mind when using these certified security seals .
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