Vegetable fats and oils — Isomeric diacylglycerols — Determination of the content and relative amoun...
This International Standard specifies the determination of the degree of isomerization of diacylglycerols in vegetable fats and oils. 1,2-diacylglycerols are transformed to the more stable 1,3-isomers during storage or due to acidic catalyzed reaction.
The mass fraction of 1,2-diacylglycerols can be used as a quality criterion for vegetable fats and oils. The absolute content of diacylglycerol…
Dentistry — Endodontic instruments — Part 8: Accuracy of electronic apex locator
This part of ISO 3630 specifies requirements and test methods for the accuracy of electronic apex locators that are used to determine the apical foramen (‘apex’ in this document) location during endodontic treatment. Integrated types of electronic apex locators are excluded from this standard.
Autonomous Underwater Vehicles — Risk and Reliability
This standard is developed to link product engineering and the successful performance of an autonomous underwater vehicle, especially for “extreme missions”. An extreme mission being a relative term can be seen as any underwater expedition that is increasing in difficulty level. While these vehicles have been and are being manufactured by many companies all around the globe for several decades,…
Information technology — Keyboard layouts for text and office systems — Part 9: Groups and mechanism...
Within the general scope described in ISO/IEC 9995-1, ISO 9995-9:2016 defines the allocation on a keyboard of a set of graphic characters which, when used in combination with an existing national version keyboard layout, allows the input of a minimum character repertoire as defined herein.
This repertoire is intended to address all characters needed to write all contemporary languages using the…
Seal-less rotodynamic pumps — Class II — Specification
1.1 This International Standard specifies the requirements for seal-less rotodynamic pumps that are driven with
permanent magnet coupling (magnet drive pumps) or with canned motor, and which are mainly used in chemical
processes, water treatment and petrochemical industries. Their use can be dictated by space, noise, environment
or safety regulations.
Seal-less pumps are pumps where an inner…
Carbon dioxide capture, transportation and geological storage — Carbon dioxide storage using enhance...
1.1 Applicability
This document applies to carbon dioxide (CO2) that is injected in enhanced recovery operations for oil and other hydrocarbons (CO2-EOR) for which quantification of CO2 that is safely stored long-term in association with the CO2-EOR project is sought. Recognizing that some CO2-EOR projects use non-anthropogenic CO2 in combination with anthropogenic CO2, the document also shows…
Fertilizers — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
The method consists in distilling of the ammonia from an alkaline solution, absorbing in an excess of standard volumetric sulphuric acid solution and back-titrating with standard volumetric sodium hydroxide solution. It is applicable only in the absence of urea or its derivatives, of cyanamide and of organic nitrogenous compounds.
Halogenated isobutene-isoprene rubber (BIIR and CIIR) — Evaluation procedures
ISO 7663:2014 specifies the following:
- physical and chemical tests on raw rubbers;
- standardized materials, a standardized test formulation, and the equipment and processing methods for evaluating the vulcanization characteristics of all types of halogenated isobutene-isoprene rubber (BIIR and CIIR).
Geographic information — Data quality — Part 3: Data quality measures register
This International Standard specifies the process of establishing, maintaining and publishing a register of data quality measures in compliance with ISO 19135-1:2015. It identifies and describes the components and content structure of a register for data quality measures, and the registration and maintenance procedure. This International Standard also specifies the required machine-readable (XML…
Plastics — Methods of exposure to solar radiation — Part 3: Intensified weathering using concentrate...
ISO 877-3:2018 specifies a method for exposing plastics to concentrated solar radiation using reflecting concentrators to accelerate the weathering processes. The purpose is to assess property changes produced after specified stages of such exposures. The reflecting concentrators used in these exposures are sometimes referred to as "Fresnel reflectors" because in cross-section the array…
