Aijiren e ka fana ka linkho tsa polokelo tsa litlhaloso tse fapaneng, tse sebelisoang haholo bakeng sa tlhahlobo ea metsi le mobu. Mofuta ona oa polokelo o ka boela oa bitsoa vial ea EPA, haholo-holo 40ml screw cap EPA vial. Bokhoni ba ho boloka libotlolo tsa EPA screw-top ke 20ml-60ml, joalo ka 20ml, 30ml, 40ml, le 60ml.
