AS 3789.4-1994

1-AS 3789.4-1994 TEXTILES FOR HEALTH CARE FACILITIES AND INSTITUTIONS - WOOL BLANKETS
4-PREFACE
5-CONTENTS
6-SECTION 1 SCOPE AND GENERAL
6-1.1 SCOPE
6-1.2 REFERENCED DOCUMENTS
7-1.3 DEFINITION
7-1.3.1 Leno weave
7-1.4 CLASSIFICATION
7-1.5 LABELLING
8-S ECTION 2 MANUFACTURING REQUIREMENTS
8-2.1 WOOL CONTENT AND QUALITY
8-2.2 WEAVE
8-2.2.1 Heavyweight and standard weight blankets
8-2.2.2 Lightweight blankets
8-2.3 MASS
8-2.4 COLOUR
8-2.5 DIMENSIONS
8-2.6 WHIPPING
8-2.6.1 Heavyweight and standard weight blankets
9-2.6.2 Lightweight blankets
9-2.6.3 Cellular blankets
10-S ECTION 3 PERFORMANCE REQUIREMENTS
10-3.1 STRENGTH OF FABRIC
10-3.2 DIMENSIONAL STABILITY
10-3.3 RESISTANCE TO INSECT ATTACK
10-3.4 COLOURFASTNESS
11-APPENDIX A - SOLUBLE CHROMIUM CONTENT OF WOOL
11-A1 SCOPE
11-A2 REAGENTS
11-A2.1 Buffer solution (pH 7.8 ±0.2)
11-A2.2 Sulfuric acid solution (1 mol/L)
11-A2.3 Saturated bromine water
11-A2.4 Diphenylcarbazide solution
11-A2.5 Potassium dichromate solution (9.8 × 10 -3 g/L)
11-A3 APPARATUS
11-A3.1 Spectrophotometer
11-A3.2 Stoppered 250 mL conical flasks
11-A3.3 50 mL volumetric flasks
11-A4 PROCEDURE
12-A5 CALIBRATION
12-A6 CALCULATION
12-A7 REPORT
13-APPENDIX B - MEASUREMENT OF BLANKETS
13-B1 SCOPE
13-B2 PRINCIPLE
13-B3 APPARATUS
13-B4 TEST SPECIMEN
13-B5 PROCEDURE
13-B6 REPORT
15-APPENDIX C - PURCHASING GUIDELINES
15-C1 SCOPE
15-C2 GENERAL
15-C3 INFORMATION TO BE SUPPLIED BY THE PURCHASER
15-C4 PACKAGING AND IDENTIFICATION
15-C5 DISAGREEMENT OF TEST RESULTS
16-APPENDIX D - DETERMINATION OF DIMENSIONAL STABILITY
16-D1 SCOPE
16-D2 PRINCIPLE
16-D3 REAGENTS
16-D4 APPARATUS
16-D5 TEST SPECIMENS
16-D6 PROCEDURAL DETAILS
16-D6.1 Test load
17-D6.2 Procedure
17-D7 CALCULATIONS
17-D8 REPORT