ISO 1264:1980 (R2020)
Active , Reaffirmed Standard
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ISO 1264:1980 (R2020)

Plastics — Homopolymer and copolymer resins of vinyl chloride — Determination of pH of aqueous extract

Summary

Treatment of a test portion of resin with a given volume of an aqueous solution of sodium chloride previous neutralized to pH 7,0. After stirring and decanting, measurement of the potential difference existing between a glass electrode and a reference calomel electrode immersed in the liquid maintained at 23 °C and reading of this difference, expressed in pH units directly on th pH meter scale.

Notes

90.93 : Norme internationale confirmée

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 11/01/1980
Confirmation Date 06/13/2020
Edition 1
Page Count 2
EAN ---
ISBN ---
Weight (in grams) ---
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