Vacuum technology — Standard methods for measuring vacuum-pump performance — Part 4: Turbomolecular ...
This document, in conjunction with ISO 21360-1, specifies methods for the measurement of performance characteristics of turbomolecular vacuum pumps. It is applicable to all sizes and all types of turbomolecular vacuum pumps, including those
— with mechanical or magnetic bearings;
— with or without an additional drag stage(s) or other pumping stages on the shaft;
— with one or more inlet ports.…
Leather — Red hair sheep skin — Part 1: Description of defects
This draft international standard describes the defects which may occur on raw red hair sheep skins. It is applicable to fresh and cured (air dried, wet salted or dry salted) red hair sheep skins.
Leather — Red hair sheep skins — Part 2: Guidelines for grading on the basis of defects
This draft international standard prescribes guidelines for classification of raw or cured, trimmed red hair sheep skins on the basis of visually apparent defects.
Industries du pétrole et du gaz, y compris les énergies à faible teneur en carbone — Revêtements ext...
L'ISO 21809-3:2016 spécifie les exigences relatives au revêtement des joints soudés sur site des tubes en acier sans soudure et soudés destinés aux tronçons enterrés ou immergés des systèmes de transport par conduites utilisés dans les industries du pétrole, de la pétrochimique et du gaz naturel, tels que définis dans l'ISO 13623. La présente partie de L'ISO 21809-3:2016 spécifie…
Stérilisation des produits de santé — Indicateurs chimiques — Partie 4: Systèmes d'indicateurs ...
L'ISO 11140-4:2007 spécifie les performances des indicateurs de Classe 2, destinés à être utilisés pour les stérilisateurs à la vapeur, comme alternative à l'essai de Bowie et Dick pour les produits de santé emballés (par exemple les instruments et les charges poreuses).
Un indicateur conforme à l'ISO 11140-4:2007 incorpore un matériau spécifié utilisé comme charge d'essai.…
Carbonaceous materials for the production of aluminium — Pitch for electrodes — Determination of con...
Specifies a conventional gravimetric method for the determination. A test portion ist reated with quinoline in a beaker at 70 to 80 °C for 15 to 20 min. Then the dissolved test portion and the residue are brought to a Hartley funnel fitted with a filter pad, and are filtered. The washed and dried residue on the filter pad is weighed.
Packaging — Linear bar code and two-dimensional symbols for product packaging
ISO 22742:2010
specifies the minimum requirements for the design of labels containing a linear bar code and two‑dimensional symbols on product packages to convey data between trading partners,
provides guidance for the formatting on the label of data presented in a linear bar code, two‑dimensional symbols or human‑readable form,
provides specific recommendations regarding the choice of linear…
Information security — Fully homomorphic encryption — Part 1: General
This document defines the general concepts and principles of fully homomorphic encryption including foundational definitions, symbols and formats. This document also describes the security models, hardness assumptions with concrete security, message spaces, plaintext spaces, ciphertext spaces, and key spaces.
Verification that the function itself is computed correctly is outside of the scope.
