Ultrasonics. Real-time pulse-echo scanners. Phantom with cylindrical, artificial cysts in tissue-mimicking material and method for evaluation and periodic testing of 3D-distributions of void-detectability ratio (VDR)1 Scope This technical specification specifies essential characteristics of a phantom and method for the measurement of void detectability ratio for medical ultrasound systems and related transducers. It is restricted to the aspect of long term reproducibility of testing results. This technical specification establishes: important characteristics and requirements for a TMM 3D artificial cyst phantom using anechoic voids; a design example of a 3D

BS EN 13780 on touch and close fasteners

Organic components which have the same or nearly the same retention time as the substance analyzed during the gas chromatographic analysis will interfere

7 % (m/m) oxygen

The IT industry / the IT divisions at aerospace facilities

This International Standard specifies the identifiers currently used by the space link protocols and shows how these identifiers are managed at the CCSDS level

This full revision of BS 6375-2 includes the following changes:

Description of facilities

A water kettle is a cooking utensil which is used most often to boil water for beverages made with additional ingredients that are best prepared with boiling water

Other types of fall arresters are specified in EN 353‑1 or EN 360

This standard covers the various types of dry-type transformers

This document describes methods for determining side lengths

Regulatory and planning authorities