Reference number
ISO 3137:1974
ISO 3137:1974
© ISO 2024
International Standard
ISO 3137:1974
Anhydrous hydrogen fluoride for industrial use — Sampling
Edition 1
1974-12
1974-12
ISO 3137:1974
8302
Publicado
(Edición 1, 1974)
Esta publicación se revisó y confirmó por última vez en 2023.
Por lo tanto, esta versión es la actual.
Resumen
This part contains a method for taking laboratory samples intended for the determination of the water content and the preparations of the test samples. Contains instructions for handling with the material. Applicable for taking samples of this highly corrosive liquid from road and rail tanks, drums and cylinders. The principle consists in allowing the liquid of one of these containers to flow in a cooled evacuated stainless steel cylinder or cylinders of not less than 1 kg total capacity. The apparatus for sampling is shown in a figure. Part Two deals with the preparation of the test sample by introduction of the liquid into a polyolefin cylinder containing two layers of ice. Has also been approved by the IUPAC.