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Affichage 6721 - 6730 de 8051
Carbonaceous materials for the production of aluminium — Pitch for electrodes — Determination of sul...
A sample is oxidized by combustion in a bomb containing oxygen under pressure. The sulphur is gravimetrically determined in the bomb washings in the form of barium sulfate. The method is applicable to pitches of both coal ta and petroleum origin, provided that they contain at least 0,1 % (m/m) sulfur.
Éditeur :
ISO
Statut :
Publié
Date de publication :
1988-12-14
Code(s) de l'ICS :
71.100.10
Ferronickel shot — Sampling for analysis
Applies to ferronickel lots in the form of shot as specified in ISO 6501 in those cases where lots are constituted either heat by heat or by taking from blendes stock. The purpose is to determine the contents of the various elements either from slugs by physical analysis methods or from chips by dry methods or chemical analysis.
Éditeur :
ISO
Statut :
Annulée
Date de publication :
1988-12-14
Code(s) de l'ICS :
77.100
Cheese and processed cheese products — Determination of chloride content — Potentiometric titration ...
Is applicable to all cheeses and processed cheese products containing more than 0,2 (m/m) of chloride ion. The principle is based on the suspension of a test portion in water, acidification with nitric acid and subsequent potentiometric titration of chloride ion with standard volumetric silver nitrate solution.
Éditeur :
ISO
Statut :
Annulée
Date de publication :
1988-12-07
Code(s) de l'ICS :
67.100.30
Acid-grade and ceramic-grade fluorspar — Determination of iron content — 1,10-Phenanthroline spectro...
Éditeur :
ISO
Statut :
Annulée
Date de publication :
1988-12-07
Code(s) de l'ICS :
73.080
Manganese ores and concentrates — Determination of total iron content — 1,10-Phenanthroline spectrom...
The method is applicable to products having a total iron content from 0.1 % (m/m) to 15 % (m/m). ISO 9292 should be read in conjunction with ISO 4297. Specifies principle, reactions, reagents, apparatus, sampling and samples, procedure and expression of results.
Éditeur :
ISO
Statut :
Publié
Date de publication :
1988-12-07
Code(s) de l'ICS :
73.060.20
Steel — Determination of niobium content — PAR spectrophotometric method
The method is applicable to types of steel with niobium contents between 0,005 % (m/m) and 1,3 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report. Annex A includes additional information on the international co-operative tests. Annex B gives a graphical representation of precision data.
Éditeur :
ISO
Statut :
Publié
Date de publication :
1988-12-07
Code(s) de l'ICS :
77.080.20
Specification for plastic films for electrical purposes. Part 2: Methods of test
Applies to tests of the physical, electrical and chemical characteristics. The contents of the corrigendum of November 1995 have been included in this copy.
Éditeur :
IEC
Statut :
Révisé
Date de publication :
1988-12-04
Code(s) de l'ICS :
17.220.99; 29.035.20
Information Processing Systems - Data Communications - X.25 Packet Level Protocol for Data Termina...
This National Standard of Canada is identical in content and in layout with International Standard ISO 8208-1987, Information processing systems - Data communications - X.25 Packet Level Protocol for Data Terminal Equipment. It specifies the procedures, formats and optional user facilities at the Packet Level for Data Terminal Equipment (DTE) operating in conformance with CCITT…
Éditeur :
CSA
Statut :
Annulée
Date de publication :
1988-11-30
Code(s) de l'ICS :
35.100; 35.200
Information Processing Systems - Data Communication - High-Level Data Link Control Procedures - Ge...
This National Standard of Canada is equivalent to International Standard ISo 8885-1987. 1. Scope and field of application The principal use of the XID frame is to exchange data link information between two or more HDLC stations. For the purpose of this International Standard, data link information shall include any and all essential operational characteristics such as identification…
Éditeur :
CSA
Statut :
Annulée
Date de publication :
1988-11-30
Code(s) de l'ICS :
35.100.20
Fluorspar — Determination of moisture content of a lot
Éditeur :
ISO
Statut :
Annulée
Date de publication :
1988-11-30
Code(s) de l'ICS :
73.080

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