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UNE 55520:1991 (R2021)
SURFACE ACTIVE AGENTS. DETERGENTS. DETERMINATION OF ANIONIC-ACTIVE MATTER. MANUAL OR MECHANICAL DIRECT TWO-PHASE TITRATION PROCEDURE.
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Technical characteristics
| Publisher | Asociacion Espanola de Normalizacion y Certificacion (AENOR) |
| Publication Date | 10/23/1991 |
| Confirmation Date | 06/26/2021 |
| Page Count | 8 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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14/03/2018
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30/01/2013
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21/02/2007
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07/06/2006
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21/12/2005
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25/11/2002
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11/07/1996
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23/04/1996
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23/10/1991
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