?u= Tue, 05 Nov 2024 23:34:46 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.1 ?u=/wp-content/uploads/2024/11/cropped-icon-150x150.png ?u= 32 32 ?u=/product/publishers/iso/iso-58101982/ Tue, 05 Nov 2024 23:34:46 +0000 Starches and derived products — Determination of chloride content — Potentiometric method

Published By	Publication Date	Number of Pages
ISO	1982-12	4

]]> A solution or suspension of the sample is titrated with a standard volumetric silver nitrate solution. The method is not applied to cationic starches and amyloids soluble when cold.

]]> ?u=/product/publishers/iso/iso-58091982/ Tue, 05 Nov 2024 23:34:44 +0000 Starches and derived products — Determination of sulphated ash

Published By	Publication Date	Number of Pages
ISO	1982-12	8

]]> Incineration of a test portion, in the presence of sulphuric acid, at a temperature of 525 25 °C. The result is expressed as a percentage by mass either of the product as received or on dry basis.

]]> ?u=/product/publishers/iso/iso-53811983/ Tue, 05 Nov 2024 23:29:48 +0000 Starch hydrolysis products — Determination of water content — Modified Karl Fischer method

Published By	Publication Date	Number of Pages
ISO	1983-08	8

]]> Reaction of a solution of iodine, sulphur dioxide, pyridine and 2-methoxyethanol with the water contained in the product dispersed previously in a mixture of methanol and formamide. The method described in ISO 760 is improved by determing the content directly using the special solvent.

]]> ?u=/product/publishers/iso/iso-53792013/ Tue, 05 Nov 2024 23:29:47 +0000 Starches and derived products — Determination of sulfur dioxide content — Acidimetric method and nephelometric method

Published By	Publication Date	Number of Pages
ISO	2013-09	14

]]> ISO 5379:2013 specifies two methods (an acidimetric method and a nephelometric method) for the determination of the sulfur dioxide content of starches and derived products.

]]> ?u=/product/publishers/iso/iso-53791983/ Tue, 05 Nov 2024 23:29:47 +0000 Starches and derived products — Determination of sulfur dioxide content — Acidimetric method and nephelometric method

Published By	Publication Date	Number of Pages
ISO	1983-08	8

]]> Entrainment in a current of nitrogen of the gas extracted from the acidified and heated product, and fixing and oxidation of the gas by bubbling through a dilute solution of neutral hydrogen peroxid. Titration of the sulphuric acid formed with standard volumetric sodium hydroxide solution of nephelometric determination in the case of low contents.

]]> ?u=/product/publishers/iso/iso-53781978/ Tue, 05 Nov 2024 23:29:46 +0000 Amidons, fécules et produits dérivés — Dosage de l'azote selon la méthode de Kjeldahl — Méthode spectrophotométrique

Published By	Publication Date	Number of Pages
ISO	1978-06	8

]]> La présente Norme internationale spécifie une méthode spectrophotométrique de dosage de l'azote selon la méthode de Kjeldahl, dans les amidons, fécules et leurs produits dérivés, dont la teneur présumée en azote est inférieure à 0,025 % ^(m/m).1)NOTE – Dans les amidons, fécules et dérivés n'ayant pas reçu d'adjonctions azotées, l'azote est présent essentiellement sous forme de protides et/ou d'amino-acides.

]]> ?u=/product/publishers/iso/iso-53771981/ Tue, 05 Nov 2024 23:29:46 +0000 Starch hydrolysis products — Determination of reducing power and dextrose equivalent — Lane and Eynon constant titre method

Published By	Publication Date	Number of Pages
ISO	1981-12	8

]]> Titration of a prescribed volume of mixed Fehling's solution with a solution of a test portion under specified conditions, using methylene blue as internal indicator. An informative annex provides a metod for testing standard reference anhydrous D-glucose, necessary for the procedure.

]]> ?u=/product/publishers/iso/iso-39471977/ Tue, 05 Nov 2024 23:13:14 +0000 Amidons et fécules, natifs ou transformés — Détermination de la teneur en matières grasses totales

Published By	Publication Date	Number of Pages
ISO	1977-08	4

]]> La présente Norme internationale spécifie une méthode de détermination de la teneur en matières grasses totales, dans les amidons et fécules natifs ou transformés dont la teneur escomptée en matières grasses totales est inférieure à 1,5 % (m/m).

]]> ?u=/product/publishers/iso/iso-39461982/ Tue, 05 Nov 2024 23:13:13 +0000 Amidons, fécules et produits dérivés — Détermination de la teneur en phosphore total — Méthode spectrophotométrique

Published By	Publication Date	Number of Pages
ISO	1982-12	8

]]> La présente Norme internationale spécifie une méthode de détermination de la teneur en phosphore total des amidons, fécules et produits dérivés, dont la teneur escomptée est inférieure à 5 % (m/m) en phosphore (P).

]]> ?u=/product/publishers/iso/iso-35931981/ Tue, 05 Nov 2024 23:08:04 +0000 Starch — Determination of ash

Published By	Publication Date	Number of Pages
ISO	1981-10	4

]]> Incineration of a test portion at a temperature of 900 °C, until complete disappearance of the carbon in the residue. The method specifies a procedure for the evaluation of natural and added mineral substances together. It applies to contents up to 2 %. It does not apply to hydrolysis products nor to oxidized starches, nor to other products containing more than 0,2 % of chloride. In other cases, see ISO 5809.

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