Mechanical vibration -- Measurement and evaluation of human exposure to hand-transmitted vibration-- Part 2: Practical guidance for measurement at the workplace
Vigente
Idioma: Inglés
Formato: Visualización con Impresión
$309.876
Optics and optical instruments -- Measurement of reflectance of plane surfaces and transmittance of plane parallel elements
No Vigente
Idioma: Inglés
Formato: Visualización con Impresión
$172.788
Internal combustion engines -- Piston rings-- Part 3: Keystone rings made of steel