Sealed sample containing test tube for cold storage
On 2018-01-04 19:23:52
I bought it as a cap for AS ONE disposable glass test tube (16 mm). Although it is kept at room temperature from about 40 ° C, it has sufficient sealability and its price was cheap and it was possible to use. Although it is unknown whether the variation of the cap or the test tube is uneven, the seal was sometimes sweet.