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The Vienna Convention for the Protection of the Ozone Layer and the Montreal Protocol on Substances that Deplete the Ozone Layer logo was developed to provide a distinct brand for the two treaties across various communication assets and applications. The visual identity guideline is designed to provide a comprehensive overview of applications and correct use of the logo.


The Montreal Protocol on Substances that Deplete the Ozone Layer is a global agreement to protect the Earth’s ozone layer by phasing out the chemicals that deplete it. This phase-out plan includes both the production and consumption of ozone-depleting substances. The landmark agreement was signed in 1987 and entered into force in 1989. 

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Laboratory and analytical uses
Process agents
Safety standards, Tools

This interactive tool presents a non-exhaustive list of international, regional and national safety standards relevant to Refrigeration, Air-Conditioning and Heat Pump equipment developed by relevant Standards Organizations.

The standards are broadly classified into two categories: Main system safety standards, subdivided into Vertical system safety standards and Horizontal system safety standards, and Supplementary standards.

Categories and examples of laboratory uses (not exhaustive list)


1. Research and development (e.g. pharmaceutical, pesticide, CFC

and HCFC substitutes)

1.1 Reaction solvent or reaction feedstock (e.g. Diels-Alder and Friedel-Craft Reactions, RuO3 oxidation, allelic side bromination, etc.)

2. Analytical uses and regulated applications (including quality control)

2.1 Reference

– Chemical (ODS monitoring, volatile organic compound (VOC) Detection, Equipment Calibration)

– Toxicant

– Product (adhesive bond strength, breathing filter test)

2.2 Extraction

– Pesticide and heavy metal detection (e.g. in food)

– Oil mist analysis

– Colour and food additive detection

– Oil detection in water and soil

2.3 Diluent

– Zinc, copper, cadmium detection in plants and food

– Microchemical methods to determine molecular weight or oxygen

– Measuring drug purity and residual determination

– Sterilization of lab equipment

2.4 Carrier (Inert)

– Forensic methods (e.g. fingerprinting)1

– Titration (cholesterol in eggs, drug chemical characteristics, “Iodine value”, e.g. in oils and chemical products)

– Analytical equipment (Spectroscopy (Infra-red, Ultra-violet, Nuclear Magnetic Resonance, fluorescence), chromatography (High-pressure liquid chromatography, gas chromatography, thin-layer chromatography)

2.5 Tracer

– Sanitary engineering

2.6 Miscellaneous (including testing)

– Ingredient in material for testing (e.g. asphalt, metal fatigue and fracturing)

– Separation media (separation of extraneous materials such as filth and insect excreta from stored food products)

3. Miscellaneous (including biochemical)

3.1 Laboratory method development

3.2 Sample preparation using solvent

3.3 Heat transfer medium

















Annex IV of the 7th MOP

adopted by decision VII/11

Categories of laboratory and analytical uses allowing the use of methyl bromide


(a) As a reference or standard:

(i) To calibrate equipment which uses methyl bromide

(ii) To monitor methyl bromide emission levels

(iii) To determine methyl bromide residue levels in goods, plants and commodities

(b) In a laboratory toxicological study

(c) To compare the efficacy of methyl bromide and its alternatives inside a laboratory;

(d) As a laboratory agent which is destroyed in a chemical reaction in the manner of feedstock





Decision XVIII/15

1 Forensic finger-printing is no longer exempted: