Name in English:
St NSF Criteria C-9-1992 (Evaluation of special processes, components, or devices used in treating wastewater)
Name in Russian:
Ст NSF Criteria C-9-1992 (Evaluation of special processes, components, or devices used in treating wastewater)
Description in Russian:
Оригинальный стандарт NSF Criteria C-9-1992 (Evaluation of special processes, components, or devices used in treating wastewater) в PDF полная версия. Дополнительная инфо + превью по запросу