Determination of hygroscopic moisture in analytical samples ? Gravimetric, Karl Fischer and mass-loss methods. 1 Scope. This International Standard specifies a method for the determination of the moisture content of a lot of iron ore. This method is applicable to all iron ores, whether natural or processed.
On-line Moisture Determination of Ore Concentrates - Review of Traditional Methods and Introduction of a Novel Solution bulk solids handling Vol. 21 (2001) No. 1, pp. 65−72 Find P. Cancilla in the Who-is-Who
Moisture Determination in Iron Ore with the TGM800 When the Kaunis Iron Mine opened in Sweden, it was the newest in one of Sweden's biggest industries. The mine contracted with Degerfors Laboratory (D-LAB) for their iron analysis.
THE DETERMINATION OF CRITICAL MOISTURE CONTENT FOR ORE CONCENTRATES AND COALS. After discussing some other methods for determining
A method for the estimation of chromium in chrome ores is reported. Manganese dioxide or manganese ore in the presence of 9M sulphuric acid is used for the oxidative decomposition of different grades of chrome ores. The results compare …
This International Standard specifies a method for the determination of the hygroscopic moisture content in analytical samples of chromium ores, intended to be carried out simultaneously with the determination of other constituents of the same analytical sample so that the contents of the other constituents can be calculated on the basis of the ...
Determination of the transportable moisture limit of iron ore fines for the prevention of liquefaction in bulk carriers. Michael C Munro. Abbas Mohajerani. ... An overview of the behaviour of iron ore fines cargoes, and some recommended solutions for the reduction of shifting incidents during marine transportation 1.
moisture determination to be insensitive over the range 12–20% moisture content, and therefore unsuitable for determining the end of drying (i.e. when coffee has a maximum of 12% moisture), or for verifying that coffee in the marketing chain is at a safe moisture content. Page 1 of 6 'Good Hygiene Practices along the coffee chain'
A novel on-line determination system for ore concentrate moisture could replace the normally tedious classic manual procedure. The task of moisture determination is still done in the classic loss-in-weight technique using uncontrolled procedures. Generally, it is acceptable to have ore concentrate moisture content vary within a range of 7% to 9%.
The moisture determination in iron ores is regulated by two ISO standards (2596:2006 and 3087:2011). The hygroscopic moisture may be determined by a gravimetric, Karl Fischer or mass-loss methods. In any of them, the sample is to be heated at 105 ± 2°C for periods of time up to twenty four hours in order to remove the moisture.
ISO 3087. July 1, 2020. Iron ores — Determination of the moisture content of a lot. This document specifies a method for the determination of the moisture content of a lot of iron ore. This method is applicable to all iron ores, whether natural or processed. ISO 3087.
105°C. The moisture content is expressed either as a percent of the oven dry mass or of the as-received mass. 2.2 Method B — This is an alternative moisture method which removes the total moisture in two steps: (1) evaporation of moisture in air at room temperature (air-drying), and (2) the subsequent oven drying of the air-dried sample at ...
MOISTURE DETERMINATION OF IRON ORE LOT 0. FOREWORD 0.1 This Indian Standard was adoptedby the Indian Standards Institution on 11 June 1986, after the draft finalized by the Methods of Sampling Sectional Committee had been approved by the Structural and Metals Division Council. 0.2 Moisture content has an important bearing in the final trading ...
B. Fagerberg and A. Stavang, "Determination o f Critical Moisture Contents in Ore Concentrates Carried in Cargo Vessels," in Mineral Transportation, Vancouver, 1971. 
moisture content at which liquefaction actually occurs (the FMP). This difference between the TML and the FMP is intended to provide a safety margin to protect against variations in moisture or FMP throughout the cargo and to allow for measurement uncertainties in the laboratory determination of moisture and FMP.
determination of the size distribution of the lot or sub-lot. 3.10 Laboratory Sample (Sub-lot) — The quantity of ore obtained by reducing a gross sample following a specified procedure and intended for laboratory testing. 3.11 Moisture Sample — The sample to be used exclusively for the purpose of determining moisture content.
(1946). Determination of Alumina in Chrome Ore and Chrome-Magnesite Refractories. Transactions of the Indian Ceramic Society: Vol. 5, No. 3, pp. 101-103.
unit) with systems called Moisture Determination Balances. Depending on the balance and heating mechanism, a wide array of precision and accuracy is available. Today there are even micro-moisture analyzers, using microbalances that can provide moisture measurement to the PPM level, consistent with the limits of KF testing.
Lv et al. defined a moisture capacity of iron ore particles as the water holding ability, and found that moisture capacity of iron ores had a strong positive relation to the optimal water content ...
Before analysis could be run on the samples, however, the ore had to be dried and moisture levels measured. D-LAB had a problem: their current moisture determination methods use d a manual balance that could only handle one sample at a time, requiring a technician's attention every five minutes. The ISO 3087:2020 method used was also a problem ...
Today, the task of moisture determination is still done in the classical technique of loss in weight by uncontrolled procedures. These same methods were introduced in the earliest base metal concentrators. Generally, it is acceptable to have ore concentrate moisture content vary within a range of 7 to 9%.
Determination of Moisture and Total Solids . 3.1 Introduction. ... High moisture samples. Food samples that have high moisture contents are usually dried in two stages to prevent "spattering" of the sample, and accumulation of moisture in the oven. Spattering is the process whereby some of the water jumps out of the food sample during drying ...
This International Standard specifies a method for the determination of the moisture content of a lot of iron ore. This method is applicable to all iron ores, whether natural or processed. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated
Concentrates - Determination Of Hygroscopic Moisture Content In Analytical Samples - Gravimetric Methods. " . The basis for ISO 31 O is that a hygro sco pic moisture determination is performed in parallel with the analysis of manganese ore. Test portions for the hygroscopic moisture
RAPID ANALYSIS OF GHROMITE AND CHROME ORE By JOSEPH I. DINNIN ABSTRACT Rapid methods for the determination of the major and of some minor constitu ents of chromite and chrome ore permit the complete analysis of a dozen or more samples to be performed in about 5 days with a precision comparable to that of the more conventional methods.
The results in Table 1 show that any type of chrome ore (low, medium or high grade) can be analysed for its chromium content by the present method. The observed values are comparable to those obtained by standard procedures. The method can also be used for determination of Cr203 and chromium(III) in solutions.
When both moisture content and pollutant emission rate are to be determined, the moisture determination shall be simultaneous with, and for the same total length of time as, the pollutant emission rate run, unless otherwise specified in an applicable subpart of the standards. 8.1.2 Preparation of Sampling Train.