pH12.46, etc., should be packed in a polyethylene bottle) with a tight cap. It should be stored at a low temperature (5-10°C) in the refrigerator. Generally, it can be used for about two months. If there is turbidity, mildew, or precipitation, it cannot be used. When using, you should prepare several 50ml polyethylene vials, pour the buffer solution in the large bottle into the vial, and place it at ambient temperature for 1 to 2 hours, and wait for the temperature to equilibrate before use. Do not pour back into the big bottle after use to avoid contamination. The buffer solution in the small bottle can be used for 2~3 days under environmental conditions of >10 степени. Генерално, може се користити време употребе три раствора пХ7.00, пХ6.86 и пХ4.00. Дуже, раствори пХ 9,18 и пХ 10,01 апсорбују ЦО2 у ваздуху, а њихове пХ вредности се релативно лако мењају.
Молимо кликните испод фотографије и прочитајте више детаља о овом ПХ мерачу ПХ818?
ПХ818 Линк производа:
