GB/T 6150.3-2023 《Methods for chemical analysis of tungsten concentrates—Part 3: Determination of phosphorus content—The phosphorus molybdenum yellow spectrophotometry and inductively coupled plasma atomic emission spectrometry》 Related products

This document outlines the methods for the determination of phosphorus content in tungsten concentrates, including the Phosphorus Keystone Spectrophotometric method, spectra-trophotometry and Inductance Coupled Plasma Atomic Emission Spectroscopy (AES) methods, and specifies the determination ranges of both methods. Among them, Method 1 is suitable for the determination of phosphorus content between 0.0050% and 1.00%, and Method 2 is suitable for the determination of phosphorus content between > 1.00% and 10.00%. The document emphasizes the adherence to normative reference documents, lists the necessary terms and definitions, and details the principles, reagents or materials required in Method 1.