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The principle is based on the addition of a test portion, under specified conditions, of potassium permanganate solution. Determination of the time taken for the colour of this test solution to match that of a cobalt(II) chloride and uranyl nitrate colour standard. - International Standards ISO 1388/1 to ISO 1377/12 cancel and replace ISO Recommendation R 1388-1970 of which they constitute a…

The method is applicable to products having esters contents in the range 0.005 % (m/m) to 0.15 % (m/m). The principle consists in the saponification of esters present in a test portion by boiling with excess standard volumetric sodium hydroxide solution; determination of the residual sodium hydroxide, and hence the amount used for saponification, by titration with standard volumetric hydrochloric…

The method is applicable to products having carbonyl compounds contents between 0.00025 % (m/m) and 0.01 % (m/m). The principle is based on reaction in acid medium of the carbonyl compounds in a test portion with 2,4-dinitrophenylhydrazine. Formation of the corresponding 2,4-dinitrophenylhydrazones which, after making the solution alkaline, take on a red coloration. Photometric measurement of…

The method is applicable to products having carbonyl compounds contents equal to or greater than 0.01 % (m/m). The method only allows determination of those carbonyl compounds which react under the specified conditions. The principle is based on the reaction of hydroxylammonium chloride with the carbonyl compounds in a test portion and titration of the hydrochloric acid formed with standard…

The method is applicable to products having aldehyde contents in the range 0.00025 % (m/m) to 0.00125 % (m/m). The principle is based on the reaction of the aldehydes present in a test portion with Schiff reagent. Visual comparison of the colour obtained with the colours of standard colorimetric solutions containing known quantities of acetaldehyde. - International Standards ISO 1388/1 to ISO…

Specifies a series of sizes for single part continuous forms used in processing paperwork documentation for handwritten and/or machine-written applications. The standard also specifies the diameter and location of the sprocket feed holes and margins. It specifies a common physical format and tolerances for continuous forms so as to ensure compatibility between such documents and office and…

1.1 Scope 1.1.1 This standard applies to newly produced domestic gas ranges (see Part III, Definitions) constructed entirely of new, unused parts and materials (a) for use with natural gas, (b) for use with propane, (c) for installation in mobile housing or recreational vehicles for use with propane only (see 1.2.22), and (d) for installation in mobile housing or recreational…

This standard is a guide identifying in chart form the principal uses of road asphalt materials and listing definitions of terms used to describe road asphalt materials and their applications. The purpose of this standard is to assist road designers and material specifiers in the selection and specification of common road asphalt materials for new roads and the repair of old roads. This…

1. Scope 1.1 This Standard covers general recommendations for loading dry-type distribution and power transformers that have in sulation systems limited to 150, 185 and 220°C maximum hottest-spot operating temperatures, manufactured in accordance with CSA Standard C9, Dry-Type Transformers.

This standard covers the construction and performance of domestic conversion burners for use with natural gas and propane with inputs of not more than 400 000 Btu/h (120 kW).