Complying with ISO’s 17712 High Security Seal Standards Tuesday 20 June 2017 @ 09:16

The ISO developed a voluntary international standard including specifications and requirements for a security seals to be classified as “High Security”.

ISO 17712 Security Seals


Harcor is able to demonstrate that the “High Security” seals that have been classified as ISO 17712 compliant meet the international standard. This is confirmed by certification from an accredited independent laboratory. The laboratory conducts testing to ensure that the security seal has the required built-in tamper evidence features needed to meet the standard’s specifications. The laboratory conducting the testing should be accredited according to ISO procedures, such as ISO 17025.

The type of seals that are eligible for “High Security Seal” classification must be made from metal and therefore Bolt Security Seals and Cable Security Seal models are eligible for ISO 17712 classification.

Including an “H” mark on the locking body and bolt is one of the requirements for a Bolt Security Seal to comply with ISO 17712:2013. This is an easy element to inspect. Other requirements include strength characteristics, durability against weather, chemicals and tampering.

C-TPAT is a government program run by the U.S. Customs and Border Protection (CBP) Bureau that states “…a high security seal must be affixed to all loaded containers bound for the U.S. and all seals must meet or exceed the current ISO 17712 standards for high security seals.”

Harcor stock a range of High Security Seals that fully comply with C-TPAT as they have been ISO 17712:2013 high security seal certified. Please see the C-TPAT security seals webpage or contact us if you require information on any cargo security matters.