AS NZS 1580.107.8-1995 (2013) PDF

Full title and description

AS/NZS 1580.107.8:1995 — Paints and related materials — Methods of test, Method 107.8: Application of paint at a nominated spreading rate by determination of wet film mass (brush application). Reconfirmed in 2013, this short test method specifies how to determine the spreading rate of brush-applied paints by measuring the wet film mass of the applied coating on test panels.

Abstract

This standard describes a laboratory procedure for applying paint by brush at a nominated spreading rate and calculating that spreading rate from the measured wet film mass. The method is intended for brushing paints that do not contain appreciable amounts of highly volatile solvent and includes practical guidance on minimum test area and accuracy considerations.

General information

• Status: Current — reconfirmed (R2013) and remains a valid AS/NZS publication.
• Publication date: 7 May 1995 (AS/NZS 1580.107.8:1995).
• Publisher: Standards Australia (published jointly as an AS/NZS method; maintained for use in Australia and New Zealand).
• ICS / categories: Paints and varnishes — ICS 87.040 (paints and varnishes / paint testing).
• Edition / version: 1st edition, AS/NZS designation (1995) — reconfirmed 2013 (R2013).
• Number of pages: 3 (concise method).

Scope

The method provides a procedure for testing the application of paint by brush at a nominated spreading rate and for calculating the spreading rate from the wet film mass of the applied paint. It is suitable only for brushing paints that are known not to contain a significant fraction of high-volatility solvent and is recommended for test panels with a wet-film area generally not less than 0.02 m2 because of weighing accuracy constraints.

Key topics and requirements

• Determination of wet film mass as the primary measurement for calculating spreading rate (wet mass → spreading rate conversion).
• Brush application technique and conditions for preparing test panels to a nominated spreading rate.
• Limitations: not suitable for paints with appreciable high-volatility solvent content; practical minimum test area (≈0.02 m2) due to weighing accuracy.
• Precision and reporting requirements to ensure repeatability of wet-mass-based spreading-rate determinations.
• References and coordination with other AS/NZS 1580 methods (e.g., density and film-thickness methods) for complete paint evaluation.

Typical use and users

Laboratories and quality-control departments in paint manufacturing, coatings formulation and R&D, independent test houses, and end-users who need to verify or specify the practical spreading rate (coverage) of brush-applied paints for specification, certification or comparative testing. Practitioners include paint technologists, coatings engineers, laboratory technicians and standards/quality managers.

Related standards

This method is part of the AS/NZS 1580 series (Methods of test for paints and related materials). Related test methods commonly used alongside 107.8 include density and film-thickness methods (for example AS/NZS 1580.202.1/202.2 and AS/NZS 1580.107.2), panel preparation and environmental conditioning methods (AS/NZS 1580.104.1 and AS/NZS 1580.101.5), and other 1580 series methods addressing rheology, colour and gloss.

Keywords

AS/NZS 1580.107.8, wet film mass, spreading rate, brush application, paints test method, paint coverage, AS/NZS 1580, reconfirmed 2013, paint laboratory method

FAQ

Q: What is this standard?

A: AS/NZS 1580.107.8:1995 is a short test method that specifies how to apply paint by brush at a nominated spreading rate and determine that spreading rate from the wet film mass of the applied coating.

Q: What does it cover?

A: It covers the procedure for brush application to test panels, measurement of wet film mass, calculation of spreading (coverage) rate and the method's limitations (not suitable for paints with high-volatility solvent content and recommended minimum wet-film area for accurate weighing).

Q: Who typically uses it?

A: Paint manufacturers, coatings laboratories, independent test houses, R&D teams and quality/standards personnel who need to measure or specify the practical coverage of brush-applied paints.

Q: Is it current or superseded?

A: The 1995 method is listed as current and was formally reconfirmed (no technical changes) in 2013 (R2013). It remains part of the AS/NZS 1580 suite of test methods.

Q: Is it part of a series?

A: Yes — it is one method within the AS/NZS 1580 series (Methods of test for paints and related materials) and is intended to be used in conjunction with related 1580 methods (density, film thickness, panel preparation, conditioning, etc.).

Q: What are the key keywords?

A: Wet film mass; spreading rate; brush application; paint coverage; AS/NZS 1580; methods of test; paint laboratory method; R2013 (reconfirmation).