NF C93-909-081-2-2016 Fibre optic interconnecting devices and passive components - Performance standard - Part 081-2 - non-connectorized single-mode fibre optic middle-scale 1 x N DWDM devices for category C - Controlled environments
ISO 21713-2020 精细陶瓷(高级陶瓷、高级工业陶瓷)--用薄壁c环法测定陶瓷在高温下的弹性模量 Fine ceramics (advanced ceramics, advanced technical ceramics) — Determination of elastic modulus of ceramics at high temperature by thin wall C-ring method