Ethanol for industrial use — Methods of test — Part 7: Determination of methanol content (methanol c...
The principle is based on the conversion of methanol present in a test portion to formaldehyde by oxidation. The oxidation is carried out with a solution of potassium permanganate in phosphoric acid. Reaction of the formaldehyde formed with chromotropic acid (4,5-dihydroxynaphthalene-2,7-disulphonic acid). Photometric measurement of the violet coloration obtained at a wavelength of about 570 nm…
Information and documentation — International standard name identifier (ISNI)
ISO 27729:2012 specifies the International Standard name identifier (ISNI) for the identification of public identities of parties, i.e. the identities used publicly by parties involved throughout the media content industries in the creation, production, management and content distribution chains.
The ISNI system uniquely identifies public identities across multiple fields of creative activity and…
