---
title: "ASTM C1069"
url: "https://mat-cs.com/astm-c1069/"
description: "This test method covers the determination of the specific surface area of aluminas and silicas used in the manufacture of ceramics."
---

ASTM Standard

# ASTM C1069

Standard Test Method for Specific Surface Area of Alumina or Quartz by Nitrogen Adsorption

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## Significance and Use

4.1 Both sellers and purchasers of alumina and quartz will find the test method useful to determine the specific surface area and indirectly as a measure of the particle size for material specifications, manufacturing control, and research and development.

## Scope

1.1 This test method covers the determination of the specific surface area of aluminas and silicas used in the manufacture of ceramics. The test method is a general one, permitting the use of any modern commercial nitrogen adsorption apparatus but strictly defining the outgassing procedure. Calculations are based on the Brunauer-Emmett-Teller (BET) equation.

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