AS 3894.4-2002

1 - AS 3894.4-2002 SITE TESTING OF PROTECTIVE COATINGS - ASSESSMENT OF DEGREE OF CURE
1 - PREFACE
1 - FOREWORD
1 - METHOD
1 - 1 SCOPE
1 - 2 DEFINITIONS
1 - 3 REFERENCED DOCUMENTS
2 - 4 GENERAL
3 - 5 METHOD A-PENCIL HARDNESS TEST
3 - 5.1 Principle
3 - 5.2 Apparatus
3 - 5.2.1 Pencil leads
3 - 5.2.2 Pencil lead holder
4 - 5.2.3 Abrasive paper
4 - 5.3 Preparation of leads
4 - 5.4 Procedure
5 - 5.5 Report
5 - 6 METHOD B-DUROTEST STYLUS
5 - 6.1 Principle
5 - 6.2 Apparatus-Stylus
5 - 6.3 Procedure
6 - 6.4 Report
6 - 7 METHOD C-RUB TEST
6 - 7.1 Principle
6 - 7.2 Apparatus and materials
6 - 7.2.1 Cotton cloth
6 - 7.2.2 Solvent
6 - 7.3 Procedure
7 - 7.4 Report
7 - 8 METHOD D-BARCOL HARDNESS IMPRESSOR
7 - 8.1 Principle
7 - 8.2 Apparatus
7 - 8.2.1 Indentor
7 - 8.2.2 Calibration standards
7 - 8.3 Procedure
8 - 8.4 Report

This Standard provides guidance on practical procedures, for use in the field, to assess the degree of cure or through-dry in coatings. Applicable coatings include those that dry by oxidation (e.g., alkyd), solvent evaporation (e.g., lacquers such as chlorinated rubber), those that set by chemical reaction with a liquid curing agent (e.g., epoxy) and those that react with the atmosphere (e.g., inorganic zinc).

This Standard provides guidance on practical procedures, for use in the field, to assess the degree of cure or through-dry in coatings.Applicable coatings include those that dry by oxidation (e.g., alkyd), solvent evaporation (e.g., lacquers such as chlorinated rubber), those that set by chemical reaction with a liquid curing agent (e.g., epoxy) and those that react with the atmosphere (e.g., inorganic zinc).

Originated as AS 3894.4-1993.
Second edition 2002.