Take a look of the Reference Support Document of the technical devices having been granted the certificates of conformance by RusChlor under its voluntary certification system called “RusChlorCert” and valid as of December 01, 2022. Here is the link: Справочник технических устройств, имеющих сертификаты соответствия "РусХлорСерт", действующих на 01.12.2022
“Association of the chlor-alkali industry of the Russian Federation” (Association “RusChlor”)