สิ่งแวดล้อม มลภาวะ ของเสีย
เอกสารมาตรฐาน
สหรัฐอเมริกา
APHA
SMWW 9060
Samples
2023
5
Standard methods for the examination of water and wastewater (543.3 APHA 24th ed. Ref. Treatises&monographs FL2)
Collect samples for microbiological examination in clean, sterile, wide-mouth, nonreactive borosilicate glass or plastic bottles, or in presterilized plastic bags appropriate for microbiological use. The bottles must have nonleaking ground glass stoppers or caps with nontoxic liners that withstand repeated sterilization. For sludge analysis, disposable wide-mouth sterile cups may be convenient. If legal action may be involved, consider using tamper-evident closures.