Optique et photonique ⎯ Lasers et équipements associés aux lasers ⎯ Méthodes d’essai de distribution...
Le présent document spécifie des méthodes permettant de procéder au mesurage de la distribution de densité de puissance (d'énergie) et définit les paramètres de caractérisation des propriétés spatiales des fonctions de distribution de densité de puissance (d'énergie) laser dans un plan donné.
Les méthodes d'essai données dans le présent document sont destinées à être utilisées dans…
Déclarations environnementales et programmes pour les produits — Autodéclarations environnementales
ISO 14021:2016 spécifie les exigences relatives aux autodéclarations environnementales, y compris les mentions, symboles et graphiques concernant les produits. Elle décrit, en outre, des termes choisis, couramment employés dans les allégations environnementales, en précisant leur utilisation. La présente Norme internationale décrit également une méthodologie générale d'évaluation et de…
Pneumatic fluid power — Test methods for measuring acoustic emission pressure levels of exhaust sile...
This document specifies two methods of measuring the level of acoustic pressure at the outlet of an exhaust silencer:
— the first method, called "steady-state mode", is intended to evaluate the noise level under steady state flow, i.e. constant upstream pressure (steady-state test according to ISO 6358‑1); and
— the second method, called "discharge", is intended to measure the…
Refrigerated food lockers — Thermal and energy performance, ratings, environmental test conditions a...
This standard specifies requirements for the thermal and energy performance of refrigerated food lockers, in given environmental conditions and intended for the temporary cold storage of chilled or frozen pre-ordered or pre-selected foodstuff until the final collection by the consumer.
The standard also covers construction characteristics relevant for the thermal and energy performance.
This…
Additive manufacturing of metals — Powder bed fusion — Material properties of stainless steel alloys
This document covers additively manufactured stainless steel components using full-melt powder bed fusion such as electron beam melting and laser melting. The components produced by these processes are used typically in applications that require mechanical properties similar to machined forgings and wrought products. Components manufactured to this specification are often, but not necessarily,…
Traditional Chinese medicine — Sophora tonkinensis root and rhizome
This document specifies the minimum requirements and test methods for Vietnamese Sophora root, which is the dried root and rhizome of Sophora tonkinensis Gagnep. (Fam. Leguminosae).
This document applies to Vietnamese Sophora root sold and used as Chinese materia medica (whole medicinal materials) and decoction pieces derived from this plant.
Water quality — Determination of pHT in sea water — Method using the indicator dye m-cresol purple
ISO 18191:2015 specifies a spectrophotometric determination of the pHt of sea water on the total hydrogen ion concentration pH scale using the indicator dye m-cresol purple. The total hydrogen ion concentration, [H+]t, is expressed as moles per kilogram of sea water. The method is suitable for assaying oceanic levels of pHt 7,4 to 8,2 for normal sea water of practical salinity ranging from 20 to…
Fasteners — Calculation methods for bolt/nut assemblies — Nut design
This document specifies design criteria for nuts specified in ISO 898-2 so that, under static tensile overload, the stripping fracture mode is prevented.
The design criteria are also applicable to non-standardized nuts or internally threaded elements with ISO metric screw threads (in accordance with ISO 68-1) mating with bolts. However, dimensional factors such as the width across flats or other…
