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  ISO 21253-1:2019

  ISO 21253-1:2019 Water quality — Multi-compound class methods — Part 1: Criteria for the identification of target compounds by gas and liquid chromatography and mass spectrometry

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  ISO 21253-1:2019

  ISO 21253-1:2019 Water quality — Multi-compound class methods — Part 1: Criteria for the identification of target compounds by gas and liquid chromatography and mass spectrometry

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  ISO 9809-1:2019

  ISO 9809-1:2019 Gas cylinders — Design, construction and testing of refillable seamless steel gas cylinders and tubes — Part 1: Quenched and tempered steel cylinders and tubes with tensile strength less than 1 100 MPa

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  ISO 9809-1:2019

  ISO 9809-1:2019 Gas cylinders — Design, construction and testing of refillable seamless steel gas cylinders and tubes — Part 1: Quenched and tempered steel cylinders and tubes with tensile strength less than 1 100 MPa

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  $74.40
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  ISO 9809-2:2019

  ISO 9809-2:2019 Gas cylinders — Design, construction and testing of refillable seamless steel gas cylinders and tubes — Part 2: Quenched and tempered steel cylinders and tubes with tensile strength greater than or equal to 1 100 MPa

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  ISO 9809-2:2019

  ISO 9809-2:2019 Gas cylinders — Design, construction and testing of refillable seamless steel gas cylinders and tubes — Part 2: Quenched and tempered steel cylinders and tubes with tensile strength greater than or equal to 1 100 MPa

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  $74.40
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  ISO 9809-3:2019

  ISO 9809-3:2019 Gas cylinders — Design, construction and testing of refillable seamless steel gas cylinders and tubes — Part 3: Normalized steel cylinders and tubes

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  ISO 9809-3:2019

  ISO 9809-3:2019 Gas cylinders — Design, construction and testing of refillable seamless steel gas cylinders and tubes — Part 3: Normalized steel cylinders and tubes

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  ISO 21391:2019

  ISO 21391:2019 Nuclear criticality safety — Geometrical dimensions for subcriticality control — Equipment and layout

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  ISO 21416:2019

  ISO 21416:2019 Recreational diving services — Requirements and guidance on environmentally sustainable practices in recreational diving

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