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API STD 521: Guide for Pressure-relieving and Depressuring Systems – Edition 6

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682

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1197

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CSA B51:24 Boiler, Pressure Vessel, and Pressure Piping Code

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ISO 8022:1990

ISO 8022:1990 Surface active agents – Determination of wetting power by immersion

CDN $124.00

SKU: ce473843b09f Category:

Description

A cotton disc of known nature and characteristics, held in a grip, is immersed in a solution of surface active agent of known concentration. After displacement of air an penetration of the solution into the cloth, the cotton disc starts to sink. The wetting time is determined by measurement the interval between the moment of immersion of the cotton disc and the moment when it begins to sink. The wetting time is determined of two standard solutions and for each of five different concentrations and then of the surface active agent solution under test for five different concentrations. The three curves “wetting time / concentration” are plotted and compared.

Edition

2

Published Date

1990-07-05

Status

PUBLISHED

Pages

7

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

A cotton disc of known nature and characteristics, held in a grip, is immersed in a solution of surface active agent of known concentration. After displacement of air an penetration of the solution into the cloth, the cotton disc starts to sink. The wetting time is determined by measurement the interval between the moment of immersion of the cotton disc and the moment when it begins to sink. The wetting time is determined of two standard solutions and for each of five different concentrations and then of the surface active agent solution under test for five different concentrations. The three curves "wetting time / concentration" are plotted and compared.

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