ISO 26261-2:2017 specifies requirements for the construction, performance and protective packaging of Category 4 fireworks, as listed in ISO 26261‑1.
ISO 26261-2:2017 does not apply for articles containing pyrotechnic compositions that include any of the following substances:
- arsenic or arsenic compounds;
- lead or lead compounds (except for igniters);
- mercury compounds;
- white phosphorus;
- picrates or picric acid.
ISO 26261-2:2017 does not apply for theatrical pyrotechnic articles which are designed for indoor or outdoor stage use, including film and television productions or similar use.