ANSI/ISEA Z89.1-2014
There were three main changes to the ANSI/ISEA Z89.1-2014 standard issued on May 15, 2014:
Under the section of Accessories and Replacement Components there is further clarification that accessory or component manufacturers are required to prove that their components do not cause the helmets to fail. Helmet accessory or component suppliers must provide justification upon request that their product would not cause the helmet to fail the requirements of the Head Protection Standard.
Some additional language added under the Instructions and Markings section to help clarify that “useful service life” for helmets is not required by the Standard. It is up to helmet manufacturers if they want to include specific service life in terms of years. Manufacturers could elect to specify the number of years for their helmet’s service life or elect to identify certain conditions that may affect a helmet’s protection capability over time.
The last section revised was the Higher Temperature section for users who work in hot environments. This section was updated to incorporate an optional preconditioning at a higher temperature of 140º F +- 3.6º F (60º C +- 2º C). Previously hot temperature preconditioning was conducted at 120º F +- 3.6º F (48.8º C +- 2º C) under the 2009 Standard. Helmets that meet the performance criteria after being preconditioned to these higher temperatures (140º F) will be designated with a HT marking.