GB/T 12009.4-2016
Plastics—Aromatic isocyanates for use in the production of polyurethane—Part 4: Determination of isocyanate content
ASTM E1899-16
Standard Test Method for Hydroxyl Groups Using Reaction with
ASTM E1899-08
Standard Test Method for Hydroxyl Groups Using Reaction with
GB/T 12009.4-1989
Polymethylene polyphenyl isocyanate—Determination of isocyanate content
GB/T 12009.4-2016/XG1-2019
KS I ISO 17735-2012(2017)
Workplace atmostheres-Determination of total isocynate groups in air using 1-(9-anthracenylmethyl)piperazine(MAP) reagent and liquid chromatography
EN 15168:2006
ASTM E1899-23
Standard Test Method for Hydroxyl Groups Using Reaction with
UNE-EN 15168:2007
Surface active agents - Determination of hydroxyl value. p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide
BS EN 15168:2006
Surface active agents. Determination of hydroxyl value. p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide
DIN EN 15168
Surface active agents - Determination of hydroxyl value - p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide
ASTM E1899-02
Standard Test Method for Hydroxyl Groups Using Reaction with p-Toluenesulfonyl Isocyanate (TSI) and Potentiometric Titration with Tetrabutylammonium Hydroxide
ASTM E1899-97
Standard Test Method for Hydroxyl Groups Using Reaction with p-Toluenesulfonyl Isocyanate (TSI) and Potentiometric Titration with Tetrabutylammonium Hydroxide