AS 1745.2-1989

1 - AS 1745.2-1989 OUTDOOR WEATHERING OF PLASTICS IN THE AUSTRALIAN ENVIRONMENT - GUIDE FOR DESIGN PURPOSES
4 - PREFACE
4 - CONTENTS
5 - 1 SCOPE.
5 - 2 REFERENCED DOCUMENTS.
5 - 3 DEFINITIONS.
5 - 3.1 Unit manufacturing process
5 - 3.2 Grade (of a plastics material)
5 - 3.3 Global radiation.
5 - 3.4 Total exposure period
5 - 3. 5 Failure
5 - 4 GUIDELINES FOR THE PREPARATION OF DATA SHEETS.
5 - 4.1 General.
5 - 4.2 Guidelines for the selection of suitable tests.
6 - 4.3 Specimens for exposure.
6 - 4.4 Climatic data to be recorded during tests.
6 - 4.5 Exposure of specimens.
6 - 4.6 Presentation of data for design and selection purposes.
6 - 5 GUIDELINES FOR THE USE OF DATA SHEETS.
6 - 5.1 General.
6 - 5.2 Use factor.
7 - 5.3 Criteria and expected modes of failure.
8 - 5.4 The relationship of criteria of failure to exposure test data.
8 - 5.5 Geographic adjustment of weathering results.
10 - APPENDIX A - SAMPLE DATA SHEET ON WEATHERING PERFORMANCE OF TEST SPECIMENS
10 - A1 SCOPE.
10 - A2 SAMPLE DATA SHEET.
10 - 1 Basis of data sheet.
10 - 2 General description of materials.
10 - 3 Applications.
10 - 4 Test specimens.
10 - 5 Racks and mountings.
10 - 6 Climatic data.
10 - 7 Change in properties with exposure.
12 - APPENDIX B - METHOD FOR ESTIMATING THE SERVICE LIFE OF A PLASTICS PRODUCT IN OUTDOOR SERVICE, USING AN ILLUSTRATIVE EXAMPLE
12 - B1 SCOPE.
12 - B2 THEORETICAL ESTIMATION OF USE FACTOR FOR BOTTLE CRATES.
12 - B2.1 General.
12 - B2.2 Active service period.
13 - B2.3 In storage period.
13 - B2.4 Use factor.
13 - B3 DETERMINATION OF SUITABILITY OF MILK CRATE FOR OUTDOOR USE, USING A SYNTHESIZED EXAMPLE.
13 - B3.1 Assumed performance requirements.
13 - B3.2 Assumed criteria and expected mode of failure.
13 - B3.3 Establishment of specific impact strength criteria.
14 - B3.4 Correlation of impact strengths of exposed specimens and unexposed crates.
15 - B3.5 Estimation of service life and safety factor.
15 - B3.6 Conclusion as to suitability of crates.

Sets out the recommended method of presenting, accumulating and using data on outdoor weathering of plastics. The Standard will assist in the selection of suitable plastics for use in commercial products for outdoor use in Australia.

This Standard sets out the recommended method of accumulating, presenting and using data on the outdoor weathering of plastics taking into account the methods of production, fabrication and installation of the test specimens. The Standard will assist in the selection of suitable plastics materials for the manufacture of commercial products for outdoor use in the Australian environment.