STM PDF

Plain bearings - Hydrodynamic plain journal bearings under steady-state conditions - Part 2- Characteristic values for calculation of multilobed journal bearings. Original standard ISO 31657-2-2025 in PDF full version. Additional info + preview on request

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Plain bearings - Hydrodynamic plain journal bearings under steady-state conditions - Part 3- Characteristic values for calculation of tilting pad journal bearings. Original standard ISO 31657-3-2025 in PDF full version. Additional info + preview on request

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Plain bearings - Hydrodynamic plain journal bearings under steady-state conditions - Part 4- Permissible operational parameters for calculation of multi-lobed and tilting pad journal bearings. Original standard ISO 31657-4-2025 in PDF full version. Additional info + preview on request

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Leather - Physical and mechanical tests - Part 2- Determination of double edge tear load. Original standard ISO 3377-2-2025 in PDF full version. Additional info + preview on request

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Guidance for practical implementation of ISO 37155 series for supervising at each life cycle phase of smart community infrastructures. Original standard ISO 37190-2025 in PDF full version. Additional info + preview on request

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Metallic powders - Determination of tap density. Original standard ISO 3953-2025 in PDF full version. Additional info + preview on request

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