ISO 787-19:1974

$13.00

General methods of test for pigments — Part 19: Determination of water-soluble nitrates (Salicylic acid method)

Published By	Publication Date	Number of Pages
ISO	1974-05	5

Guaranteed Safe Checkout

Categories: 87.060.10 - Pigments and extenders, ISO

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

This document specifies a spectrophotometric method. The principle of the method consists in that the nitrate present in the extract of the sample is used to nitrate salicylic acid in sulphuric acid medium. The nitro-compound formed is of an intense yellow colour in alkaline solution and the colour is measured spectrophotometrically at a wavelength of 410 nm. ISO 787/13 specifies a method using Nessler's reagent. The two methods may not necessarily give the same result; work is being carried out to compare the two methods.

Additional information

Published Code	ISO
Published By	International Organization for Standardization
Publication Date	1974-05
Pages Count	5
Language	English
Edition	1
File Size	256.0 KB
ICS Codes	87.060.10 - Pigments and extenders

Preview PDF


PDF Format	Searchable	Printable	Preview Now

ISO 787-19:1974

Related products