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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.

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:

Categories of laboratory and analytical uses no longer exempted


1. Refrigeration and air-conditioning equipment used in laboratories, including refrigerated laboratory equipment such as ultra-centrifuges

2. Cleaning, reworking, repair, or rebuilding of electronic components or assemblies

3. Preservation of publications and archives

4. Sterilization of materials in a laboratory

Decision VII/11

5. Testing of oil, grease and total petroleum hydrocarbons in water

6. Testing of tar in road-paving materials

7. Forensic finger-printing

Decision XI/15

8. Testing of organic matter in coal

Decision XIX/18

Date Substances traded Volume Exporting country Details of the illegal ODS trade Action taken Remarks
2013 HCFC-22 22.9 MT China A person was accused in 2017 of entering into an agreement with a Chinese company to purchase HCFC-22, which was packaged in cylinders bearing counterfeit trademarks. The 2013 contract listed the product as R-134a – but a second, secret agreement called for the company to actually sell HCFC-22. The indictment charged the accused with conspiracy, one count of entry of goods by means of false statement, five counts of passing false and fraudulent papers through a customhouse, one count of smuggling and one count of violating the Clean Air Act by improperly selling HCFC-22 to an undercover agent. In 2018 the accused pleaded guilty of charges of illegally importing ODS. He was ordered to pay a fine of $40,000 and sentenced to a term of two years’ probation, to include 6 months of home confinement.
Treaty texts
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UN system events are guided by the highest ethical and professional standards, and all participants are expected to behave with integrity and respect towards all participants attending or involved with any UN system event.

Gender in treaties

This document aims to initiate a discussion on gender mainstreaming in the work of the ozone treaties. It begins by providing a brief overview of international instruments on gender and the 2030 Agenda, to which the parties’ implementation of the ozone treaties has over the years made significant contributions. The 2030 Agenda clearly acknowledges the link between environmental protection and gender equality: Sustainable Development Goal 5 (SDG5) is aimed at achieving gender equality and empowering all women and girls, and gender-related aspects are present within several other goals as well.

  Substance Name Chemical Formula
PFPHP - Perfluoroperhydrophenanthrene (Vitreon, Flutec PP 11) CAS 306-91-2
PFTBA - Tris(perfluorobutyl)-amine (FC-43) CAS 311-89-7
TCHFB - 1,2,3,4‐Tetrachlorohexafluorobutane CAS 375-45-1
DCTFP - 3,5-Dichloro-2,4,6-trifluoropyridine CAS 1737-93-5
DCTCB - 1,2-Dichloro-3-(trichloromethyl)benzene CAS 84613-97-8