Research Report RR:D20-1244
An interlaboratory test was conducted by seven laboratories testing four samples to establish a precision statement for test method D7253. Each laboratory used a colorimetric endpoint titration for the generation of the data used to develop the statement.
D7253-16 Standard Test Method for Polyurethane Raw Materials: Determination of Acidity as Acid Number for Polyether Polyols
Committee D20 on Plastics
Subcommittee D20.22 on Cellular Materials - Plastics and Elastomers