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Provides pictorial standards for designating. The quantity of cracking is rated by reference to table 2 of ISO 4628/1 and using as examples figures 1 or 2, depending on the type of cracking. The average size of the cracks is designated according to the classification.

Provides pictorial standards for rating of flaking. The quantity of damage is rated on the basis of the relative area flaked, by reference to table 1 and using the figures 1 and 2 as examples.

Specifies a method designed to check the long-term stability of a solid to alpha disintegration by detection of all modifications in the properties of an irradiated sample. The solid is borosilicate glass or, as an alternative, ceramics or glass-ceramics and a two-phase mixture of glass beads dispersed in a metal matrix, made from adequate (stable) fission product elements spiked with appropriate…

Defines, in both English and French, terminology pertaining to dental science, dental materials, dental equipment and the practice of dentistry. Establishes translations of terms between the two official languages. It is anticipated that additions to the contents of the standard will be made annually.

This control is intended essentially for the detection of alcoholic impurities in aceton. The principle consists in treatment of a test portion with Agulhon's reagent (potassium dichromate solution added to nitric acid solution) under specified conditions. The presence of certain impurities, in particular alcoholic ones, is indicated by a blue or violett coloration. International Standards…

Gives general instruction and specifies the methods for the determination of density at 20 °C, the determination of dry residue after evaporation on a water bath, the measurement of colour, the determination of distillation range and the determination of water content. International Standards ISO 757/1 to ISO 757/5 cancel and replace ISO Recommendation R 757-1968, of which they constitute a…

The principle of the method consists in dilution of a test portion with carbon dioxide-free water, titration of the test solution, if acid, with standard volumetric sodium hydroxide solution, using phenolphthalein as indicator. The method is applicable to products having acidities, expressed as acetic acid, equal to or greater than 0,0006 % (m/m). International Standards ISO 757/1 to ISO 757/5…

This representation mode may be used particulary when it is not necessary to show the exact form and size and where the designation of standardized centre holes is sufficient for information. Annex A gives the dimensions for types R, A and B, and Annex B the proportions and dimensions of symbols.