STM PDF

Straight cylindrical involute splines - Metric module, side fit - Part 3- Inspection. Original standard ISO 4156-3-2021 (2025) in PDF full version. Additional info + preview on request

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Steel - Determination of the non-metallic inclusion content - Micrographic method. Original standard ISO 4967-2026 in PDF full version. Additional info + preview on request

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Anaesthetic and respiratory equipment - Oropharyngeal airways. Original standard ISO 5364-2026 in PDF full version. Additional info + preview on request

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Water quality - Sampling - Part 15- Preservation and handling of samples of sludge, sediment and suspended matter. Original standard ISO 5667-15-2026 in PDF full version. Additional info + preview on request

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Aerospace - Nuts, self-locking, with maximum operating temperature less than or equal to 425 °C - Procurement specification. Original standard ISO 5858-2026 in PDF full version. Additional info + preview on request

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Reagents for chemical analysis - Part 2- Specifications - First series - Addendum 2. Original standard ISO 6353-2-1983 add2-1986 in PDF full version. Additional info + preview on request

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