AS 4211.3-1996

1 - AS 4211.3:1996 GAS RECOVERY OR COMBINED RECOVERY AND RECYCLING EQUIPMENT - FLUOROCARBON REFRIGERANTS FROM COMMERCIAL/DOMES...
4 - PREFACE
5 - CONTENTS
6 - FOREWORD
7 - SECTION 1 - SCOPE AND GENERAL
7 - 1.1 SCOPE
7 - 1.2 APPLICATION
7 - 1.3 REFERENCED DOCUMENTS
8 - 1.4 DEFINITIONS
8 - 1.4.1 HVAC/R system
8 - 1.4.2 Recovered refrigerant
8 - 1.4.3 Recovery
8 - 1.4.4 Recycling
8 - 1.4.5 Refrigerant
8 - 1.4.6 Standard contaminated refrigerant sample
8 - 1.4.7 Ullage space
8 - 1.4.8 Water capacity
9 - SECTION 2 - GENERAL REQUIREMENTS
9 - 2.1 GENERAL EQUIPMENT REQUIREMENTS
9 - 2.1.1 General description
9 - 2.1.2 Filter
9 - 2.1.3 Non-condensable gases
9 - 2.1.4 Hoses
9 - 2.1.5 Exemptions
9 - 2.2 SAFETY REQUIREMENTS
9 - 2.2.1 Electrical compliance
9 - 2.2.2 Equipment enclosure
9 - 2.2.3 Pressure equipment
9 - 2.3 OPERATING INSTRUCTIONS
10 - 2.4 FUNCTIONAL DESCRIPTION
10 - 2.4.1 Recovery pressure
10 - 2.4.2 High pressure cut-out switch
10 - 2.4.3 Portable refillable cylinders
10 - 2.4.4 Integral pressure vessels
10 - 2.4.5 Maximum mass of refrigerant
10 - 2.4.6 Vacuum pump
11 - 2.4.7 Cylinder valves
11 - 2.4.8 Pressure relief valve
11 - 2.5 OPERATION CAPABILITY
11 - 2.6 COMPRESSOR OIL LEVEL
11 - 2.7 LABELLING REQUIREMENTS
11 - 2.7.1 Electrical compliance certificate
11 - 2.7.2 Safety labelling
11 - 2.7.3 Manufacturer’s information
11 - 2.7.4 Function
11 - 2.7.5 Refrigerant
11 - 2.7.6 Performance data
11 - 2.8 EQUIPMENT LABELLING OR INSTRUCTION MANUAL
11 - 2.8.1 General
11 - 2.8.2 Recovery equipment exemption
11 - 2.8.3 Product literature
12 - SECTION 3 - PERFORMANCE TESTING
12 - 3.1 STANDARD CONTAMINATED REFRIGERANT SAMPLE
12 - 3.1.1 Standard contaminated refrigerant sample
12 - 3.1.2 Recovery equipment
12 - 3.2 TEST APPARATUS
12 - 3.2.1 Liquid and feed apparatus
12 - 3.2.2 Refrigerant feed
12 - 3.3 PERFORMANCE TESTS
15 - 3.4 SAMPLING PROCEDURES
15 - 3.4.1 General
15 - 3.4.2 Gas phase sample
16 - 3.4.3 Liquid phase sample
16 - 3.5 CHEMICAL ANALYSIS METHODS
16 - 3.5.1 General
16 - 3.5.2 Determination of moisture content
16 - 3.5.3 Determination of oil content
16 - 3.5.4 Determination of non- condensable gas content
16 - 3.5.5 Determination of chloride ions
17 - 3.5.6 Determination of acidity content
17 - 3.5.7 Determination of particulates/solids content
17 - 3.6 PERFORMANCE CALCULATION AND RATING
17 - 3.6.1 Liquid refrigerant recovery rate
17 - 3.6.2 Vapour refrigerant recovery rate
17 - 3.6.3 Recycle flow rate
17 - 3.6.4 Accuracy
17 - 3.6.5 Refrigerant loss
17 - 3.6.6 Contamination levels
18 - 3.6.7 Rating
19 - APPENDIX A - DOMESTIC REFRIGERATION - REFRIGERANT COLLECTION BAG
19 - A1 INTRODUCTION
19 - A2 APPLICATION
19 - A3 SPECIFICATION
19 - A3.1 Size
19 - A3.2 Strength and rupture characteristics
19 - A3.3 Toughness and durability
19 - A3.4 Structure
19 - A4 LABELLING
20 - A5 METHOD OF USAGE
20 - A6 OTHER PRECAUTIONS
21 - APPENDIX B - PARTICULATE USED IN STANDARD CONTAMINATED REFRIGERANT SAMPLE
21 - B1 PARTICULATE SPECIFICATION
21 - B2 PREPARATION OF PARTICULATE MATERIAL
21 - B3 STANDARD CONTAMINANT
22 - APPENDIX C - DETERMINATION OF ACIDITY IN FLUOROCARBONS
22 - C1 APPLICATION
22 - C2 PRINCIPLE
22 - C3 SAFETY PRECAUTIONS
22 - C4 APPARATUS
22 - C4.1 Microburette
22 - C4.2 Gas dispersion tube
22 - C4.3 Flowmeter, glass float
22 - C4.4 Evaporating dish
22 - C5 REAGENTS
22 - C5.1 General
22 - C5.2 Water
22 - C5.3 Standardized 0. 1 N sodium hydroxide solution
22 - C5.4 Sodium hydroxide 0.01 N solution
22 - C5.5 Sulfuric acid, approximately 1.0 N solution
22 - C5.6 Sulfuric acid, approximately 0.01 N solution
22 - C5.7 Bromothymol blue indicator, 1.0 g/l solution
23 - C6 PROCEDURE
23 - C6.1 Fluorocarbons boiling below 20° C
23 - C6.2 Fluorocarbons boiling above 20° C
23 - C7 CALCULATIONS
23 - C7.1 Fluorocarbons boiling below 20°C
23 - C7.2 Fluorocarbons boiling above 20° C
23 - C7.3 Report

Specifies the minimum equipment requirements for safe and efficient recovery or combined recovery and recycling of refrigerants, in both liquid and vapour state, that have been directly removed from and intended for reuse in commercial or domestic HVAC/R systems. It also specifies test methods to determine equipment performance.

This Standard specifies the minimum equipment requirements for safe and efficient recovery or combined recovery and recycling of refrigerants, in both the liquid and vapour state, that have been directly removed from and are intended for reuse in, any commercial or domestic HVAC/R system which contains a refrigerant. It outlines minimum equipment specifications, and test methods to determine equipment performance.NOTE: The equipment specified in this Standard is not intended for use with ammonia or flammable refrigerants, e.g. hydrocarbons and the like.

First published as AS 4211.3-1996.