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For SigTests®: Sig Sulphide®

"We have been buying both the Sig Sulphide and Sig Nitrite test kits from ECHA for many years now, and we have always found ECHA to be very prompt, efficient and professional. The products are both excellent for the detection of SRB and NRB respectively. Highly recommended."

Trafalgar Scientific
United Kingdom


"The Sig Sulphide and Sig Nitrite kits from ECHA are two products that we regularly purchase and we have experienced nothing but great service during our time doing business with ECHA. The products are always of a high standard and delivery is always very prompt!"

Latis Scientific
United Kingdom


"ECHA Microbiology provides an excellent service to us. We are located in Chile, South America but it doesn't matter cause the delivery time is good and it has always been met. Your Sig Test products never fail. Thanks!"

Solenis Especialidades Químicas
Chile