ASTM D656-87(1999)
Standard test method for online pH measurement

Standard No.

ASTM D656-87(1999)

Release Date

1999

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D656-87(1999)

Scope

1.1 This specification covers the red pigment commercially known as pure toluidine red toner. The pigment may be purchased in the dry form or as a paste in oil.

ASTM D656-87(1999) Referenced Document

• ASTM D185 Standard Test Methods for Coarse Particles in Pigments, Pastes, and Paints
• ASTM D280 Standard Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
• ASTM D387 Standard Test Method for Color and Strength of Chromatic Pigments with a Mechanical Muller*， 2024-04-22 Update
• ASTM D970 Standard Test Methods for Para Red and Toluidine Red Pigments

ASTM D656-87(1999) history

• 1999 ASTM D656-87(1999) Standard test method for online pH measurement