Classification of Sample Vial
The sample vial also referred to the aseptic vial, is an essential tool for the detection of pollution contaminants. It is usually used with an automatic sampler or just as a storage device. In accordance with the vial material, there are mainly two types of sample vial – glass type and plastic type.
Glass Sample Vial
The glass sample vial is highly applied for the aqueous, organic solution samples. It is made of borosilicate glass, due to its low pH value change and high resistance to the organic solutions. It consists of crimp top, screw top and snap top sample vial, which can tightly seal themselves with the matched caps respectively. The main colors of the glass sample vial are clear and amber. The amber one could better satisfy the demands of samples that need to avoid direct sunlight.
Plastic Sample Vial
The plastic sample vial is mainly used for the inorganic solution samples. It is made of Polypropylene, LDPE or polyethylene, which is ideal for sampling and storing dry materials, soils and solutions. Just like the glass type, it also contains crimp top, screw top and snap top to ensure a consistent and reliable seal.