CGSB 1-GP-71 METH 56.3-1980
Methods of Testing Paints and Pigments Acidity of Shellac

Standard No.

CGSB 1-GP-71 METH 56.3-1980

Release Date

1980

Published By

Canadian General Standards Board （CGSB)

Status

Withdraw

Latest

CGSB 1-GP-71 METH 56.3-1980

Scope

By means of a weighing burette, weigh accurately 3 f 0.5 g of the acid component into a 250 mL beaker. Add 50 mL distilled water and stir. Add a few drops dilute HCI , 35 mL magnesia mixture*, 5 g ammonium acetate, and 2-3 drops of phenolphthalein

CGSB 1-GP-71 METH 56.3-1980 history

• 1980 CGSB 1-GP-71 METH 56.3-1980 Methods of Testing Paints and Pigments Acidity of Shellac