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Reactor technology. Nuclear fusion reactors. Hot helium leak testing method for high temperature pressure-bearing components in nuclear fusion reactors. Original standard BS ISO 4233-2023 in PDF full version. Additional info + preview on request

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Fine bubble technology. Environmental applications. Test method for evaluating aeration performance of fine bubble jet devices. Original standard BS ISO 4240-2-2024 in PDF full version. Additional info + preview on request

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Cinematography. Projection film leader (time-based), trailer and cue marks. Specifications. Original standard BS ISO 4241-2019 in PDF full version. Additional info + preview on request

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Cinematography. Vocabulary. Original standard BS ISO 4246-1994 (1999) in PDF full version. Additional info + preview on request

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Motorcycle tyres and rims (code-designated series). Rims. Original standard BS ISO 4249-3-2010 in PDF full version. Additional info + preview on request

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Earth-mover tyres and rims - Tyre designation and dimensions. Original standard BS ISO 4250-1-2023 in PDF full version. Additional info + preview on request

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