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07 Natural and applied sciences
New standards
ISO 17717:2024
Meteorological balloons — Specification
Scope:
This document specifies the minimum requirements and the test methods for meteorological balloons made from natural rubber latex or natural rubber latex compounded with synthetic rubber emulsion.
This document applies to two types of balloons:
— Type 1: meteorological balloon by dipping process;
— Type 2: meteorological balloon by moulding process.
This document applies to two types of balloons:
— Type 1: meteorological balloon by dipping process;
— Type 2: meteorological balloon by moulding process.
Base documents:
Replaces:
ISO 17717:2017
ISO 7392:2024
Fine bubble technology — Evaluation method for determining surface tension of ultrafine bubble dispersions
Scope:
This document specifies evaluation methods for surface tension of ultrafine bubble (UFB) dispersion in water.
Three test methods, Wilhelmy, du Noüy and the pendant drop method, are adopted because of their advantages to detect small change in surface tension by UFB dispersion in water and the high accessibility to commercially available instruments.
This document can be used to measure the surface tension of liquid containing UFB dispersion in dilute surfactant water solution such as detergent or machining coolant as well as UFB dispersion in water.
NOTE Measurement data of liquid containing UFB dispersion in dilute surfactant water solution are summarized in Annex D.
Three test methods, Wilhelmy, du Noüy and the pendant drop method, are adopted because of their advantages to detect small change in surface tension by UFB dispersion in water and the high accessibility to commercially available instruments.
This document can be used to measure the surface tension of liquid containing UFB dispersion in dilute surfactant water solution such as detergent or machining coolant as well as UFB dispersion in water.
NOTE Measurement data of liquid containing UFB dispersion in dilute surfactant water solution are summarized in Annex D.
Base documents:
ISO 7429-1:2024
Fine bubble technology — Industrial and consumer device applications — Part 1: Assessment of water pressure driven nozzles by evaluating size and concentration indices of generated fine bubbles
Scope:
This document specifies the evaluation methods for size and concentration indices of fine bubbles (FBs) generated through a nozzle. It only applies to FB dispersions (FBDs) in water generated through the nozzle. It describes the sampling method for a FBD from the nozzle into the retention container and the measurements of size and concentration indices.
Major applications of the equipment include components of various industrial water systems and consumer baths and kitchens.
Major applications of the equipment include components of various industrial water systems and consumer baths and kitchens.
Base documents:
ISO 18209-1:2024
Biotechnology — Biobanking of parasites — Part 1: Helminths
Scope:
This document provides requirements for the biobanking of helminths as parasitic resources including the collection, safeguarding, classification, proliferation, preservation, storage and distribution of helminths.
This document sets requirements for the quality of helminths and their associated data, the data collection, and safety management when handling the helminths as a source of human disease infection.
This document is applicable to all organizations performing biobanking with helminths used for research and development.
NOTE International, national or regional regulations or requirements, or multiple of them, can also apply to specific topics covered in this document.
This document sets requirements for the quality of helminths and their associated data, the data collection, and safety management when handling the helminths as a source of human disease infection.
This document is applicable to all organizations performing biobanking with helminths used for research and development.
NOTE International, national or regional regulations or requirements, or multiple of them, can also apply to specific topics covered in this document.
Base documents:
Replaced standards
ISO 17717:2017
Meteorological balloons -- Specification
Scope:
ISO 17717:2017 specifies the minimum requirements and test methods for meteorological balloons made from natural rubber latex or natural rubber latex compounded with synthetic rubber emulsion.
ISO 17717:2017 applies to two types of balloon:
- Type 1: meteorological balloon produced by dipping process;
- Type 2: meteorological balloon produced by moulding process.
ISO 17717:2017 applies to two types of balloon:
- Type 1: meteorological balloon produced by dipping process;
- Type 2: meteorological balloon produced by moulding process.
Base documents:
Replaced:
ISO 17717:2024
Drafts
prEN ISO 10705-3
Water quality - Detection and enumeration of bacteriophages - Part 3: Validation of methods for concentration of bacteriophages from water (ISO 10705-3:2003)
Scope:
This part of ISO 10705 specifies the general principles for assessing the performance of methods for the concentration of bacteriophages from water. Concentration is recommended for those water samples expected to contain < 3 pfp (plaque-forming particles) per millilitre. Concentration methods can be applied to all kinds of water provided that the amount and nature of suspended solids and/or dissolved matter do not interfere with the concentration procedure.
This part of ISO 10705 does not give specific details of concentration methods, but outlines the fundamental
principles for evaluating the suitability of a particular method for a given type and volume of water. Annex A
gives examples of methods that have been found satisfactory and their fields of application.
This part of ISO 10705 does not give specific details of concentration methods, but outlines the fundamental
principles for evaluating the suitability of a particular method for a given type and volume of water. Annex A
gives examples of methods that have been found satisfactory and their fields of application.
Base documents:
ISO 10705-3:2003; prEN ISO 10705-3