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ONORM EN 12139:1999現(xiàn)行

Surface Active Agents - Determination Of The Total Polyethylene Glycol Content Of Non-ionic Surface Active Agents (eo Adducts) By Hplc/gpc

出版：Osterreichisches Normungsinstitut

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基本信息
標(biāo)準(zhǔn)編號(hào)： ONORM EN 12139:1999
發(fā)布時(shí)間：1999/5/1 0:00:00
標(biāo)準(zhǔn)類別：Standard
出版單位：Osterreichisches Normungsinstitut
標(biāo)準(zhǔn)頁數(shù)：14
標(biāo)準(zhǔn)簡(jiǎn)介

Defines a method for the determination of the total polyethylene glycol (PEG) content of aromatic and aliphatic non-ionic surface active agents of the type R-(O-C2H4)p-OH, where 'p' is the mean ethylene oxide (EO) value. Applicable for concentrations of PEG higher than approximately 0,1g/100g of the laboratory sample. Applicable to a degree of ethoxylation of at least 25 for products which are soluble in an 80/20 (V/V) mixture of methanol and water. Long-chain products with a low degree of ethoxylation, such as tallow alcohol 5 EO, are not soluble, and require an enamelled preliminary treatment.

等同采用的國際標(biāo)準(zhǔn)

DIN EN 12139 (1999-04) - Identical

BS EN 12139:1999 - Identical

SN EN 12139:1999 - Identical

SS EN 12139 Ed. 1 (1999) - Identical

UNE EN 12139:1999 - Identical

NS EN 12139 Ed. 1 (1999) - Identical

I.S. EN 12139:1999 - Identical

UNI EN 12139:2001 - Identical

NF EN 12139:1999 - Identical

NBN EN 12139:1999 - Identical

NEN EN 12139:1999 - Identical