Over $2.5 million in scholarships and grants are awarded to 200+ high school chemistry teachers annually. The ACS-Hach Programs provide financial support to future and current high school chemistry ...

Grants awarded will fund professional development activities that take place by September 30, 2025. If you would like to have a grant for activities that will take place after this date, consider ...

一、JC-605便携式水质检测仪仪器简介 该水质检测仪采用触控式设计，集消解功能、测定功能于一体，全中文操作界面，引导式系统操作，精巧的便携式整机设计提升了用户的使用操作体验。消解比色一体管设计，预存COD、氨氮、总磷、总氮等几十种指标参数曲线 ...