Original standard ISO 18640-1-2018 in PDF full version. Additional info + preview on request
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Original standard ISO 18640-1-2018 amd1-2019 in PDF full version. Additional info + preview on request
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Original standard ISO 18640-2-2018 in PDF full version. Additional info + preview on request
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Original standard ISO 18640-2-2018 amd1-2019 in PDF full version. Additional info + preview on request
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Original standard ISO 18642-2016 in PDF full version. Additional info + preview on request
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Original standard ISO 18643-2016 in PDF full version. Additional info + preview on request
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