Source: https://pt.scribd.com/document/102213238/As-NZS-2243-2-2006-Safety-in-Laboratories-Chemical-Aspects
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As NZS 2243.2-2006 Safety in Laboratories Chemical Aspects | Physical Sciences | Science
As NZS 2243.2-2006 Safety in Laboratories Chemical Aspects
AS/NZS 2243.2:2006 This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee CH-026, Safety in Laboratories. It was approved on behalf of the Council of Standards Australia on 2 June 2006 and on behalf of the Council of Standards New Zealand on 16 June 2006. This Standard was published on 30 June 2006.
The following are represented on Committee CH-026: Australian Industry Group Australian Institute of Occupational Hygienists CSIRO Department of Labour, New Zealand Department of Primary Industries (Victoria) Environmental Science and Research, New Zealand Ministry of Economic Development, New Zealand National Association of Testing Authorities, Australia National Measurement Institute, Australia The New Zealand Chemical Industry Council RMIT University New Zealand Microbiological Society Royal Australian Chemical Institute Victorian WorkCover Authority WorkCover New South Wales Additional Interests: Independent OHS and chemical management consultant Monash University University of Western Australia
This Standard was issued in draft form for comment as DR 05420.
Originated in Australia as AS 2243.2—1979. Previous edition AS/NZS 2243.2:1997. Fifth edition 2006.
ISBN 0 7337 7586 1
This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee CH-026, Safety in Laboratories, to supersede AS/NZS 2243.2:1997. The objective of this Standard is to provide information, recommendations and procedures involving the use of chemicals which will promote safe working in laboratories. This edition has been completely reformatted to improve clarity and to incorporate changed information on staff responsibilities, laboratory waste storage and disposal, and compressed and liquefied gases. The Standard is Part 2 of a 10-part series designed to promote safety in laboratory operations, and is aimed at specific aspects of safety common to chemical laboratories.
The other Parts in the series are as follows: Part 1: Part 3: Part 4: Part 5: Part 6: Part 7: Part 8: Part 9: Part 10: Planning and operational aspects Microbiological aspects and containment facilities Ionizing radiations Non-ionizing radiations—Electromagnetic, sound and ultrasound Mechanical aspects Electrical aspects Fume cupboards Recirculating fume cabinets Storage of chemicals
It is recommended that Part 1 be used in conjunction with this Part, and that additional Parts be obtained where justified by the type of operations carried out in the particular laboratory. The terms ‘normative’ and ‘informative’ have been used in this Standard to define the application of the appendix to which they apply. A ‘normative’ appendix is an integral part of a Standard, whereas an ‘informative’ appendix is only for information and guidance.
Page SECTION 1 SCOPE AND GENERAL 1.1 SCOPE ........................................................................................................................ 4 1.2 APPLICATION ........................................................................................................... 4 1.3 REFERENCED AND RELATED DOCUMENTS ...................................................... 4 1.4 DEFINITIONS ............................................................................................................ 4 SECTION 2 PLANNING FOR CHEMICAL SAFETY ........................................................... 6
SECTION 3 CHEMICAL SAFETY MANAGEMENT 3.1 GENERAL .................................................................................................................. 7 3.2 MANAGEMENT SYSTEM COMPONENTS ............................................................. 7 3.3 CHEMICAL SAFETY PRACTICES......................................................................... 10 3.4 SPILL MANAGEMENT ........................................................................................... 12 3.5 FIRE, EMERGENCY AND RESCUE PROCEDURES............................................. 14 SECTION 4 SAFE USE OF CHEMICAL SUBSTANCES 4.1 GENERAL ................................................................................................................ 15 4.2 CHEMICAL HAZARDS ........................................................................................... 15 4.3 GASES ...................................................................................................................... 15 4.4 FLAMMABLE CHEMICALS................................................................................... 17 4.5 TOXIC (POISONOUS) CHEMICALS ...................................................................... 20 4.6 CORROSIVE SUBSTANCES................................................................................... 21 4.7 UNSTABLE CHEMICALS....................................................................................... 21 4.8 HIGHLY REACTIVE CHEMICALS ........................................................................ 21
APPENDICES A LIST OF REFERENCED AND RELATED DOCUMENTS ..................................... 23 B LABEL FOR CHEMICAL WASTES........................................................................ 27 C THE USE OF ABSORBENT MATERIALS AND SPILL KITS ............................... 28 D HANDLING OF CRYOGENIC FLUIDS .................................................................. 29 E EXAMPLES OF COMMONLY USED HIGHLY FLAMMABLE CHEMICALS .... 36 F HAZARDOUS PROPERTIES ASSOCIATED WITH COMMONLY USED HIGHLY REACTIVE CHEMICALS ........................................................................ 37 G HAZARDOUS PROPERTIES ASSOCIATED WITH COMMONLY USED TOXIC CHEMICALS ............................................................................................... 39 H HAZARDOUS PROPERTIES ASSOCIATED WITH COMMONLY USED CORROSIVE SUBSTANCES................................................................................... 41 I HAZARDOUS PROPERTIES ASSOCIATED WITH COMMONLY USED UNSTABLE SUBSTANCES .................................................................................... 43 J HAZARDS ASSOCIATED WITH THE USE OF PERCHLORIC ACID.................. 45
STANDARDS AUSTRALIA/STANDARDS NEW ZEALAND Australian/New Zealand Standard Safety in laboratories Part 2: Chemical aspects
This Standard sets out requirements and recommended procedures for safe working practices in the chemical laboratory. It includes procedures for handling flammable, toxic, corrosive, unstable and highly reactive chemicals and makes reference to the handling of compressed and liquefied gases. The Standard also includes information on hazards associated with working in the chemical laboratory. 1.2 APPLICATION This Standard is intended to be used in conjunction with AS/NZS 2243.1, which provides requirements and recommendations on matters common to all types of laboratory work. If the requirements of any part of this Standard conflict with any National, State or Territory regulations, the appropriate statutory regulations shall apply. 1.3 REFERENCED AND RELATED DOCUMENTS A list of referenced and related documents is given in Appendix A. 1.4 DEFINITIONS For the purpose of this Standard, the definitions in AS/NZS 2243.1 and those below apply.
NOTE: The definitions below may not apply in New Zealand.
1.4.1 Auto-ignition temperature The lowest temperature at which a vapour will spontaneously catch fire in air. 1.4.2 Bund An embankment of earth, or a wall of brick, stone, concrete or other material which may form part or all of the perimeter of a room or compound, and which is sufficiently impervious to retain spillage and to enable recovery of any such spillages. 1.4.3 Combustible liquid (Australia only) Any liquid other than a flammable liquid that has a flash point, and that has a fire point less than its boiling point. For the purposes of this Standard, combustible liquids are divided into two classes as follows: (a) (b) Class C1 A combustible liquid that has a flash point of 150°C or less. Class C2 A combustible liquid that has a flash point exceeding 150°C.
NOTE: The boiling point is taken to mean that point at which it is no longer possible to achieve the rate of temperature rise required by ASTM D92 for the fire point test.
AS/NZS 2243.2:2006, Safety in laboratories Chemical aspects
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