Transparent rectangular bottles made of PET. Red cap made of polypropylene with internal liner made of polexan with a label that performs as tamper evident. Wide mouth (55 mm) and grips at two sides, easing the sample collection. Sterilised by irradiation (Sterile R) Each bottle is labelled specifying description, code, lot, and expiry date.
With liquid sodium thiosulfate: Ideal to analyze water meant for human consumption, swimming pools, and any other water where chlorine may modify the composition of the sample while being transported.