AS 1745.1-1989

1 - AS 1745.1-1989 OUTDOOR WEATHERING OF PLASTICS IN THE AUSTRALIAN ENVIRONMENT - COMMERCIAL PRODUCTS
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE.
6 - 2 REFERENCED DOCUMENTS.
6 - 3 DEFINITIONS.
6 - 3.1 General.
6 - 3.2 Specimens.
6 - 3.3 Climatic.
9 - 4 REQUIREMENTS AND GUIDELINES FOR THE SELECTION OF TEST SITES.
9 - 4.1 Factors influencing the weathering of plastics.
9 - 4.2 Choosing test sites.
10 - 5 SITE FACILITIES.
10 - 5.1 Cleared sites.
10 - 5.2 Uncleared sites.
10 - 5.3 Reduction of reflection and of shading from sun, rain and wind.
10 - 5.4 Exposure racks and other mountings.
11 - 5.5 Provision for site security.
11 - 6 EXPOSURE CONDITIONS.
11 - 6.1 Duration of exposure.
11 - 6.2 Exposure trials.
11 - 6.3 Further exposure of specimens.
11 - 6.4 Aspect of exposure.
11 - 6.5 Angle of exposure.
11 - 6.6 Loads on specimens.
11 - 7 TEST SPECIMENS.
11 - 7.1 Types of specimen.
11 - 7.2 Preparation of test specimens.
12 - 7.3 Number of specimens.
12 - 7.4 Control specimens.
12 - 7.5 Reference specimens.
12 - 8 PROCEDURE.
12 - 9 EXPOSURE REQUIREMENTS FOR COMPLIANCE WITH THIS STANDARD.
13 - 10 ASSESSMENT.
13 - 11 REPORT.
13 - 12 INTERPRETATION AND STATEMENT OF COMPLIANCE.
14 - APPENDIX A - RECOMMENDED METHOD OF SPECIMEN ASSESSMENT
14 - A1 VISUAL INSPECTION.
14 - A2 ASSESSMENT PROCEDURE.
14 - A3 LOSS OF GLOSS.
14 - A4 DISCOLORATION.
14 - A5 OPTICAL DENSITY CHANGE.
15 - A6 DIRT AND DEBRIS COLLECTION.
15 - A7 BIOLOGICAL GROWTH.
15 - A8 CHALKING.
15 - A9 COLOUR CHANGE.
15 - A10 CHANGE IN MASS.
15 - A11 DIMENSIONALCHANGES.
16 - A12 MECHANICAL TESTING.
16 - A13 PERFORMANCE TESTING.
17 - APPENDIX B - METHOD OF ASSESSING CHANGE IN MASS OF EXPOSED SPECIMENS
17 - B1 SCOPE.
17 - B2 CONDITIONING.
17 - B3 INITIAL DETERMINATION OF MASS.
17 - B4 CLEANING OF EXPOSED SPECIMENS.
17 - B5 FINAL DETERMINATION OF MASS.
18 - APPENDIX C - SAMPLE TEST REPORT
18 - 1 PURPOSE OF INVESTIGATION.
18 - 2 EXPOSURE SITES.
18 - 3 TEST SPECIMENS.
18 - 4 RACKS AND MOUNTINGS.
18 - 5 CLIMATIC DATA.
18 - 6 ASSESSMENT.
18 - 7 SPECIFIED PERFORMANCE TESTING.
18 - 8 TENSILE TESTING.
22 - APPENDIX D - SAMPLE INTERPRETATIVE REPORT
23 - APPENIDX E - RACK SITING RECOMMENDATIONS
23 - E1 SCOPE.
23 - E2 SHADING DIAGRAM.
23 - E3 DETERMINATION OF SHADED AREA.
23 - E4 COMPLEX OBSTRUCTIONS.
23 - E5 SITING VARIATIONS.
25 - APPENIDIX F - EXAMPLE OF DETERMINATION OF RACK SITING

Describes the recommended practice for exposure for commercial plastics products to the Australian environment and specifies the climatic conditions in which specimens of those products are to be exposed to obtain compliance with the Standard. Methods of reporting and interpreting results are recommended and a sample report and interpretation provided. Australian climatic data and a sample report and interpretation are provided. The Standard is not applicable to the exposure of plastics specimens for the purpose of obtaining design data, or for other research or development purposes.

This Standard describes the recommended practice for exposure of commercial plastics products to the Australian environment and specifies the climatic conditions in which specimens of those products are to be exposed to obtain compliance with the Standard. Methods of reporting and interpreting results are recommended.This Standard is applicable to methods and procedures to determine the suitability of plastics products for outdoor service in defined climatic areas. It is not applicable to the exposure of plastics specimens for the purpose of obtaining design data, or for other research or development purposes.