Copper and copper alloys — Determination of bismuth content — Diethyldithiocarbamate spectrometric m...
The method is applicable to bismuth contents between 0,00005 and 0,02 % (m/m) in all types of copper and copper alloys listed in International Standards. Specifies principle, reagents, apparatus, procedure, expression of results and test report.
Copper alloys — Determination of iron content — Na2EDTA titrimetric method
The method is applicable to contents of iron in all types of copper alloys listed in International Standards. ISO 4748 specifies principle, reagents, apparatus, procedure, expression of results and test report.
Copper and copper alloys — Determination of sulfur content — Combustion titrimetric method
The method is applicable to contents of sulfur greater than 0,010 % (m/m) in all types of copper and copper alloys listed in International Standards. Specifies principle, reagents, apparatus, procedure, expression of results and test report. Figure 1 demonstrates the apparatus for the determiantion of sulfur by combustion, figures 2 and 3 illustrate some details.
This PDF includes GI #2 and Errata.
1. Scope and Introduction
1.1 This Standard is intended to cover the field of technical drawing practice. It applies primarily to end-product drawings, which usually consist of detail drawings, and assembly or subassembly drawings, but is not intended to fully cover other supplementary drawings such as check lists, schematic diagrams, electrical wiring…
Acetic anhydride for industrial use — Methods of test
Gives general instructions and specifies methods of analysis. The methods to be used are determination of destillation yield, of bromine number, of arsenic content, of permanganate index, of dichromate index, the measurement of colour, titrimetric determination of acetic anhydride content, gravimetric determination of ash, spectrometric determination of phosphate content and visual limit tests…
Gives general instructions and specifies methods od analysis. The methods to be used are determination of density at 20 °C, determination ofdry residue after evaporation on a water bath, measurement of colour, determination of distillation yield, determination of water content, detection of the alkalinity or acidity to phenolphthalein, spectrometric detection of content of carbonyl compounds in…
Acetone for industrial use — Methods of test — Part 1: General
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…
Propan-2-ol for industrial use — Methods of test — Part 1: General
Gives general intructions and specifies the methods for the determination of density at 20 °C, for the determination of boiling range, for the determination of dry residue after evaporation on a water bath, for the measurement of colour, for the determination of water content and of aldehydes and ketones content. International Standards ISO 756/1, ISO 756/2 and ISO 756/3 cancel and replace ISO…
Ethanol for industrial use — Methods of test — Part 9: Determination of esters content — Titrimetric...
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…
Ethanol for industrial use — Methods of test — Part 3: Estimation of content of carbonyl compounds p...
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…
