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  1. NS-EN 12139:1999▹

    Surface active agents — Determination of the total polyethylene glycol content of non-ionic surface active agents (EO adducts) by HPLC/GPC

    standard by Standards Norway NS-EN, 06/16/1999.

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  2. NS-EN 12458:1999▹

    Surface active agents — Determination of stability in hard water

    standard by Standards Norway NS-EN, 06/16/1999.

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  3. NS-EN 12582:1999▹

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

    standard by Standards Norway NS-EN, 09/10/1999.

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  4. HISTORICAL

    NS-EN 1262:1996▹

    This document has been replaced. View the most recent version.

    Surface active agents — Determination of the pH value of surfactant solutions or dispersions

    standard by Standards Norway NS-EN, 10/09/1996.

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    Historical Editions: NS-EN 1262:2003

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  5. NS-EN 1262:2003▹

    Surface active agents — Determination of pH value of solutions or dispersions

    standard by Standards Norway NS-EN, 12/10/2003.

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    Historical Editions: NS-EN 1262:1996

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  6. NS-EN 12728:1999▹

    Surface active agents — Determination of foaming power — Perforated disc beating method

    standard by Standards Norway NS-EN, 05/09/2000.

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  7. HISTORICAL

    NS-EN 12829:1997▹

    This document has been replaced. View the most recent version.

    Surface active agents — Preparation of water with known calcium hardness (ISO 2174:1990 modified)

    standard by Standards Norway NS-EN, 02/11/1998.

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    Historical Editions: NS-EN 12829:2011

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  8. NS-EN 12829:2011▹

    Surface active agents — Preparation of water with known calcium and magnesium hardness

    standard by Standards Norway NS-EN, 07/01/2011.

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    Historical Editions: NS-EN 12829:1997

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  9. NS-EN 12836:2002▹

    Surface active agents — Determination of the water number of alkoxylated products

    standard by Standards Norway NS-EN, 06/10/2002.

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  10. NS-EN 12974:1999▹

    Surface active agents — Determination of the 1,4-dioxane content in alkyl-ethoxy-sulfate products by GLC/head space procedure

    standard by Standards Norway NS-EN, 05/09/2000.

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