IEC 61290-4-1 Ed. 1.0: Optical amplifiers - test methods - Part 4-1: Gain transient parameters - Two-wavelength method

Fibre optic interconnecting devices and passive components - Non-wavelength-selective fibre optic branching devices - Part 1: Generic specification (IEC 86B/4613/CD:2022); Text in German and English

Aluminium fluoride for industrial use - Determination of trace elements - Wavelength dispersive X-ray fluorescence spectrometric method using pressed powder tablets

Testing of lubricants - Determination of elements content of additives, wear and other contaminations - Part 2: Wavelength dispersive X-ray fluorescence spectrometry (XRF)

Petroleum and related products - Determination of chlorine and bromine content - Wavelength-dispersive X-ray fluorescence spectrometry

Liquid petroleum products - Determination of the sulfur content in Ethanol (E85) automotive fuel- Wavelength dispersive X-ray fluorescence spectrometric method

Fibre optic interconnecting devices and passive components - Performance standard - Part 081-03: Non-connectorized single-mode fibre optic middle-scale 1×N DWDM devices for category OP - Outdoor protected environment (IEC 86B/4485/CD:2021); Text in German and English

Fibre optic interconnecting devices and passive components - Performance standard - Part 081-02: Non-connectorized single-mode fibre optic middle-scale 1×N DWDM devices for category C - Controlled environments (IEC 86B/4390/CD:2020); Text in English

IEC 60793-1-44 Ed. 2.0: Optical fibres -Part 1-44: Measurement methods and test procedures - Cut-off wavelength

Fibre optic interconnecting devices and passive components - Basic test and measurement procedures -- Part 3-7: Examinations and measurements - Wavelength dependence of attenuation and return loss of single mode components