---
title: "ASTM D3838"
url: "https://mat-cs.com/astm-d3838"
description: "This test method covers determination of the pH of a water extract of activated carbon."
---

ASTM Standard

# ASTM D3838

Standard Test Method for pH of Activated Carbon

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## Significance and Use

4.1 When a fluid containing an adsorbate is passed through a bed of activated carbon, chemical reactions may take place between the activated carbon, its other noncarbonaceous constituents, and the adsorbate-containing fluid. The pH of the carbon may be a significant parameter of such a reaction and therefore may be an important characteristic of the carbon.

## Scope

1.1 This test method covers determination of the pH of a water extract of activated carbon.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.