Optics and photonics — Optical materials and components — Test method for striae in infrared optical...
This document specifies the principle, apparatus, condition, sample, procedure and data processing of measuring striae in infrared optical materials.
It is applicable for the determination of striae in infrared optical materials, such as infrared optical glass, which is opaque to visible wavelengths and whose transmission optical spectra are beyond 0,78 µm.
Industrial valves — Measurement, test and qualification procedures for fugitive emissions — Classifi...
This document specifies testing procedures for evaluation of external leakage of valve stem seals (or shaft) of isolating valves and control valves intended for application in volatile air pollutants and hazardous fluids. End connection joints, body joints, vacuum application, effects of corrosion, and radiation are excluded from this document.
This document concerns classification system and…
