WHEN NOT IN USE, THE STANDARD SHOULD BE STORED UNDER VACUUM OR IN A SUITABLE DESICCATOR IN A TEMPURATURE CONTROLLED ENVIRONMENT Brass mount containing 10 certified steel/alloy samples and 5 high purity elements.Embedded using a conductive matrix (no Carbon coat).A 150μm Molybdenum Faraday Cup is also included for measuring the stability of the electron beam. Supplied in a specially designed storage/transportation case that contains:• The standard—protected by an additional specially designed case• A full electronic booklet on a USB, containing:• The standard plan/layout• Certificates of analysis or conformance for each material• Details on storage and care of your standards• Certificate of final inspection & recommended re-polishing date• A replaceable silica gel capsule for protection whilst in transit• A credit card sized quick reference guideA copy of the electronic booklet is also accessible from our cloud storage.