open metal wire / gas production / metal cans / suitable noncorrosive equipment / metal toxicity / fermentation tube showing gas / stainless steel / gas formation / Use stainless steel / stock phosphate buffer solution / metal containers / coliform / Rinse solution / sterile metal loop / fermentation tubes showing gas formation / actual gas production / mL stock phosphate buffer solution / mineral oil / mL magnesium chloride solution / /
Organization
National Bureau of Standards / Environmental Protection Agency / /