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Standard ÖNORM EN 12582 1.6.1999 preview

ÖNORM EN 12582

Surface active agents - Determination of the polyethylene glycol content according to molar mass in non-ionic surface active agents (ethoxylated) by HPLC/ELSD

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STANDARD published on 1.6.1999


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The information about the standard:

Designation standards: ÖNORM EN 12582
Publication date standards: 1.6.1999
SKU: NS-755216
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM

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Surface active agents

Annotation of standard text ÖNORM EN 12582 :

Diese Europäische Norm legt ein Verfahren zur Bestimmung des Gehalts an Polyethylenglycol (PEG) von aromatischen und aliphatischen nichtionischen grenzflächenanktiven Stoffen der Formel R-(O-C2H4j)5 OH fest, wobei j5 der mittlere Ethoxylierungsgrad (EO)is t. Das Verfahren ist auf alle in Methanol oder Mischungen aus MethanolNVasser lösliche ethoxylierte Produkte anwendbar. Dieses Verfahren ist auf Massenanteile an PEG größer oder gleich 0,l % anwendbar. Das Verfahren ist nicht auf PEG mit einer molaren Masse kleiner 400 ghol anwendbar. Monomeres Ethylenglycol, Diethylenglycol, Triethylenglycol und Glycerin werden nicht erfaßt. ANMERKUNG Ein Verdampfungslichtstreudetektor (ELSD) ist für routinemäßige Verfahren geeignet.

Latest update: 2026-01-20 (Number of items: 2 257 233)
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