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Space data and information transfer systems - Space communications cross support - Architecture requirements document. Original standard ISO 21076-2016 in PDF full version. Additional info + preview on request

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Space data and information transfer systems - Digital motion imagery. Original standard ISO 21077-2021 in PDF full version. Additional info + preview on request

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Determination of boron (III) oxide in refractory products - Part 1- Determination of total boron (III) oxide in oxidic materials for ceramics, glass and glazes. Original standard ISO 21078-1-2008 in PDF full version. Additional info + preview on request

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Determination of boron(III) oxide in refractory products - Part 2- Acid extraction method for the determination of boron(III) oxide in binder components. Original standard ISO 21078-2-2006 in PDF full version. Additional info + preview on request

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Chemical analysis of refractories containing alumina, zirconia and silica - Refractories containing 5 percent to 45 percent of ZrO2 (alternative to the X-ray fluorescence method) - Part 1- Apparatus, reagents and dissolution. Original standard ISO 21079-1-2008 in PDF full version. Additional info + preview on request

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Chemical analysis of refractories containing alumina, zirconia, and silica - Refractories containing 5 percent to 45 percent of ZrO2 (alternative to the X-ray fluorescence method) - Part 2- Wet chemical analysis. Original standard ISO 21079-2-2008 in PDF full version. Additional info + preview on request

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