Handbook on Chemicals

The Handbook on Chemicals is an important tool which aims at assisting States Parties in the identification of individual chemicals covered by the three Schedules in the Annex on Chemicals of the Chemical Weapons Convention.

The Handbook on Chemicals (HBC) is a part of the Declarations Handbook (i.e., Appendix 2). The HBC is an important tool which aims at assisting States Parties in the identification of individual chemicals covered by the three Schedules in the Annex on Chemicals of the Chemical Weapons Convention.

The HBC is updated and revised on a regular basis to incorporate any new scheduled chemicals that States Parties will declare in the future as well as any changes in the identifiers such as Chemical Abstracts Service Registry Numbers (CAS RN) and Harmonized System Codes (HS codes) assigned to scheduled chemicals.

The 2019 version of the HBC supersedes the previous 2018 version and includes some editorial changes in chemical names, and replaces OPCW keys for certain chemicals by their respective CAS RNs.

The HBC version 2019 includes 2060 scheduled chemicals declared by States Parties from 1997 to 2017. The chemicals are indexed in ascending order of schedule number (Schedule 1, Schedule 2 and Schedule 3); entry number in each Schedule (e.g. 2B04, 2B05, 2B06, etc.); and CAS RN or OPCW Key.

Although the HBC contains information on all scheduled chemicals declared to the Technical Secretariat, it is not a comprehensive list of all declarable scheduled chemicals, and as such should only be used as a tool to assist in the identification of chemicals. The OPCW has made available a more comprehensive database, namely, the OPCW Online Scheduled Chemicals Database, containing up to 34300 scheduled chemicals, including 2060 chemicals detailed in the HBC.

Chemical Names in the HBC have been created in accordance with the Rules for Naming Compounds in the OPCW Central Analytical Database (OCAD) ’ and OPCW Keys created (where the CAS RN is not available) in accordance with the Guidelines for Assignment of the Chemical Keys to the Scheduled Chemicals’.

Feedback

The Technical Secretariat encourages States Parties to provide feedback on the 2019 version of the HBC by sending any comments and suggestions to the Declarations Branch.

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