Rechercher

Gives general instructions ans also specifies the methods to be used for the determination of density at 20 C, the determination of aldehydes and ketones content, the determination of destillation yield, the determination of dry residue after evaporation on the water bath, the determination of bromine number, the measurement of colour and the determination of water content. International…

The principle consists in titration of the acidity of a test portion with a standard volumetric sodium hydroxide solution, using phenolphthalein as indicator. This document should be read in conjunction with ISO 755/1. International Standards ISO 755/1, ISO755/2 and ISO 755/3 cancel and replace ISO Recommendation R 755-1968, og which they constitute a technical revision. It as also been approved…

This second edition cancels and replaces the first edition (i. e. ISO 2079:1973). Defines a nuber of generic terms for which the definition is considered necessary in order clarify the scope of these processes. In addition to terms used in the three official ISO languages (English, French and Russian), this International Standard includes the equivalent terms in the German language.

The designations of metals and alloys shall be based on the chemical composition limits given in International Standards. International chemical symbols shall be used for the designation of the principal metal and the major alloying elements followed by numbers indicating the metal grade or the nominal alloy content.

Basis for this method is the laboratory sample obtained by the method specified in ISO 948. The principle of determination consists in grinding the laboratory sample, which has been previously mixed, to obtain particles of the size specified in the International Standard appropriate to the spice or condiment concerned or, if not so specified, to obtain particles of size approximately 1 mm.

1. Scope 1.1 This Standard applies to quick-connect terminals having nominal widths of 2.79 mm, 3.18 mm, 4.75 mm, 5.21 mm and 6.35 mm for use in making electrical connections in the internal wiring and to components of electrical equipment in accordance with the Rules of the Canadian Electrical Code, Part I. 1.2 This Standard applies to quick-connect terminals designed for use with…

1. Scope 1.1 This Standard applies to mechanical flue-gas exhausters intended to be installed in a flue pipe, breeching, or chimney and serving appliances burning natural gas, propane, or fuel oil. 1.2 This Standard covers the mechanical and electrical features of mechanical flue-gas exhausters for indoor or outdoor installations. 1.3 This Standard classifies mechanical flue-gas…

Specifies three methods for determination - method A: on a straightened fibre on a graduated rule, under a light tension applied with the aid of forceps and grease; - method B: measurement, using an opisometer, of the length of the image of fibre enlarged by projection on a screen; - method C: by use of a semi-mechanical device. - Intended to replace two existing International Standard, ISO 270…

Defines a procedure for obtaining and for assessing the data necessary to establish long-time stress rupture values for steels for pressure purposes for steels where properties different from those internationally agreed are being claimed. The purpose of a standard procedure is to minimize any differences in long-time estimates obtained in different countries due to differences in the quantity…

1 Scope and field of application This International Standard specifies the 15-pin connector and the assignment of connector pin numbers at the interface between data terminal equipment (DTE) and data circuit terminating equipment (DCE) where CCITT¹) Recommendations X.24, X.26, and X.27 are applicable.