STM PDF

Fans - Determination of fan sound power levels under standardized laboratory conditions - Part 1- General overview. Original standard ISO 13347-1-2025 in PDF full version. Additional info + preview on request

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Fans - Determination of fan sound power levels under standardized laboratory conditions - Part 4- Sound intensity method. Original standard ISO 13347-4-2025 in PDF full version. Additional info + preview on request

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Sludge recovery, recycling, treatment and disposal - Determination of calorific value of sludge. Original standard ISO 13610-2025 in PDF full version. Additional info + preview on request

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Fasteners - Grooved pins - General requirements. Original standard ISO 13669-2025 in PDF full version. Additional info + preview on request

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Fasteners - Reverse-taper grooved pins - One quarter-length progressive grooves on both sides. Original standard ISO 13670-2025 in PDF full version. Additional info + preview on request

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Plastics - Verification of pendulum impact-testing machines - Charpy, Izod and tensile impact-testing. Original standard ISO 13802-2025 in PDF full version. Additional info + preview on request

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