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Describes the HDLC unbalanced classes of procedures, the HDLC balanced class of procedures, and the HDLC connectionless classes of procedures for synchronous or start/stop data transmission. The procedures use the HDLC frame structure defined in ISO/IEC 3309 and the HDLC elements of procedures described in ISO/IEC 4335.

Specifies elements of data link control procedures for synchronous or start/stop, code-transparent data transmission using the HDLC frame structure specified in ISO/IEC 3309 and independent frame numbering in both directions. These HDLC elements of procedures are defined specifically in terms of the actions that occur on receipt of commands at a secondary station or a combined station.

This part of ISO/IEC 9945 defines a standard source-code-level interface to command interpretation, or "shell," services and common utility programs for applica- tion programs. These services and programs are complementary to those specified by ISO/IEC 9945-1: 1990 (IEEE Std 1003.1-1990) {8}, hereinafter referred to as "POSIX.1 {8}." When the User Portability Utilities Option…

Defines test procedures for determining the mechanical performance of precast concrete floors made of a single piece, or made up of precast joists (reinforced concrete or precast concrete) completed with filler blocks and concrete poured in situ. The parameters measured are: the maximum load, which does not result in collapse, the instantaneous and deferred deformations under imposed load, and…

The test procedures defined are: transverse dynamic bond test on finished floors, penetration resistance test of the finished floor, and indentation/bending test on filler blocks (this test is designed to verify safety at the assembly stage). Applies to all kinds of precast concrete floors and to components thereof.

The objectives are to provide a standard cable bus for the interconnection of multiple devices, both backplane bus systems, such as the IEC 821 VMEbus, and stand-alone apparatus; to specify the electrical characteristics of the cable bus; to specify the protocols that precisely define the interaction between devices connected to the VICbus; to specify the mechanisms necessary to construct fault-…

Gives the nomenclature (terms and definitions) relating to the main parts of open front mechanical power presses in English and French, terms also in German. Also defines, in English and French, terms relating to the operation and the specifications of these presses. Is intended to facilitate international communication in the field of mechanical power presses.

The method described is based on placing adult earthworms in a defined substrate containing the test substance in different concentrations and determining the percent mortality after 7 d and 14 d. It is not applicable to volatile substances, i.e. substances for which Henry's constant or the air/water partition coefficient is greater than 1, or for which the vapour pressure exceeds 0,0133 Pa…

Establishes 142 symbols uniquely for use on operator controls and other displays on earth-moving machinery as defined in ISO 6165. The symbols given apply to controls and displays specific to backhoe loaders, dozers, loaders, graders, scrapers, excavators and dumpers, and for controls and displays for stabilizers, outriggers, grapples, rippers and winches.

Applies principally to small to medium-scale instrument systems comprising mainly measurement, stimulus and interconnect devices with a controller. Specifies a set of codes and formats, defines communication protocols and defines common commands and characteristics for instrument system applications.