Material Testing Suppliers Serving Eritrea For Served Water And Wastewater Water Consulting And Engineering

Challenge Technology has been the world leader in respirometric equipment since 1991. Our respirometers are trusted by scientists worldwide for wastewater treatment, biogas optimization, compost evaluation, and soil remediation. Innovation for the ...

ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used ...