AS 4078-1992

1-AS 4078:1992 FIRE PROTECTION - FIRE EXTINGUISHING MEDIA - CARBON DIOXIDE
4-PREFACE
5-CONTENTS
6-1 Scope
6-2 Normative references
6-3 Definition
6-4 Requirements
6-5 Sampling
6-5.1 General
6-5.2 Sampling equipment
6-5.3 Procedure
6-5.3.1 General
7-5.3.2 Direct sampling
7-5.3.3 Sampling in cylinders
7-6 Methods of test
7-6.1 Safety warning
7-6.2 Purity
7-6.3 Water content
7-6.4 Oil content
7-6.5 Total sulfur compounds content
7-7 Packaging and labelling
8-Annex A - Determination of water content
8-A.1 Principle
8-A.2 Apparatus and material
8-A.2.1 Two absorption tubes
8-A.2.2 Flow meter
8-A.2.3 Gas meter
8-A.2.4 Test sieves
8-A.2.5 Desiccant
8-A.3 Sampling
8-A.4 Determination
8-A.5 Expression of results
9-Annex B - Determination of oil content
9-B.1 Principle
9-B.2 Agents
9-B.2.1 Carbon tetrachloride
9-B.2.2 Standard oil solution.
9-B.3 Apparatus
9-B.3.1 Two bubblers
9-B.3.2 Drechsel bottle
9-B.3.3 Flow meter
9-B.3.4 Gas meter
9-B.3.5 Infra-red spectrometer and accessories
9-B.4 Sampling
9-B.5 Procedure
9-B.5.1 Preparation of test solution
9-B.5.2 Preparation of blank test solution
9-B.5.3 Spectrometric measurements
9-B.5.4 Preparation of the calibration graph
10-B. 6 Expressi on of results
11-Figure B. 1 - Bubbler for the determination of oil content
12-Annex C - Determination of total sulfur compounds content
12-C.1 Principle
12-C.2 Reagents
12-C. 2.1 Hydrogen,
12-C. 2. 2 Hydrochloric acid,
12-C. 2.3 Soda lime,
12-C. 2.4 Cadmium chloride,
12-C. 2.5 Sodium thiosulfate,
12-C. 2.6 Iodine,
12-C. 2.7 Starch indicator solution.
12-C.3 Apparatus
12-C. 3.1 Flow meter,
12-C. 3.2 Flow meter,
12-C. 3.3 Two furnace tubes,
12-C. 3.4 Furnace and control:
12-C. 3.5 Soda lime tower,
12-C. 3.6 Y tube.
12-C. 3.7 Bubbler,
12-C. 3.8 Burette,
12-C. 3.9 Pipette,
12-C. 3.10 Test sieves,
12-C.4 Sampling
13-C.5 Procedure
13-C.6 Expression of results
14-Annex D - General properties
14-D.1 Physical properties
14-D.2 Electrical conductivity
14-D.3 Effects on materials
14-D.4 Static electricity
14-D.5 Toxicology
15-Annex E - Safety precautions for handling
17-Annex G - Toxicology
17-G.1 General
17-G.2 Precautions and treatment