AS 4156.3-1994

1 - AS 4156.3-1994 COAL PREPARATION - MAGNETITE FOR COAL PREPARATION PLANT USE-TEST METHODS
4 - PREFACE
5 - CONTENTS
7 - SECTION 1 SCOPE AND GENERAL
7 - 1.1 SCOPE
7 - 1.2 REFERENCED DOCUMENTS
7 - 1.3 DEFINITIONS
8 - SECTION 2 SAMPLING AND DETERMINATION OF AS-RECEIVED MOISTURE
8 - 2.1 SCOPE OF SECTION
8 - 2.2 PRINCIPLE
8 - 2.3 APPARATUS
8 - 2.4 SAMPLING
8 - 2.4.1 General
8 - 2.4.2 Magnetite in sealed bags
9 - 2.4.3 Bulk deliveries of magnetite
10 - 2.4.4 Number of samples
10 - 2.5 MOISTURE DETERMINATION
10 - 2.5.1 Free moisture
10 - 2.5.2 Air-dry moisture
10 - 2.5.3 Total moisture in the as-received consignment
11 - 2.5.4 Precision
11 - 2.6 SAMPLING FOR LABORATORY TESTS
11 - 2.6.1 General
11 - 2.6.2 Manual increment division
11 - 2.6.3 Preparation of samples
12 - 2.7 PACKING AND MARKING OF SAMPLES
13 - SECTION 3 DETERMINATION OF RELATIVE DENSITY
13 - 3.1 SCOPE OF SECTION
13 - 3.2 PRINCIPLE
13 - 3.3 REAGENTS
13 - 3.3.1 General
13 - 3.3.2 Ethanol
13 - 3.4 APPARATUS
13 - 3.5 SAMPLING
13 - 3.6 PROCEDURE
13 - 3.6.1 Density of water
13 - 3.6.2 Volume of density bottle
14 - 3.6.3 Density of alcohol
14 - 3.6.4 Relative density of sample
14 - 3.7 CALCULATIONS
14 - 3.7.1 Volume of density bottle
14 - 3.7.2 Density of alcohol
15 - 3.7.3 Relative density of sample
15 - 3.8 REPORTING OF RESULTS
15 - 3.9 PRECISION
16 - SECTION 4 DETERMINATION OF TOTAL IRON CONTENT
16 - 4.1 SCOPE OF SECTION
16 - 4.2 PRINCIPLE
16 - 4.3 REAGENTS
16 - 4.3.1 General
16 - 4.3.2 Hydrochloric acid
16 - 4.3.3 Hydrochloric acid,
16 - 4.3.4 Sulfuric acid,
16 - 4.3.5 Hydrofluoric acid,
16 - 4.3.6 Orthophosphoric acid,
16 - 4.3.7 Tin(II) chloride solution (100 g/L)
16 - 4.3.8 Mercury(II) chloride solution,
16 - 4.3.9 Sodium diphenylamine sulfonate solution,
16 - 4.3.10 Sulfuricacid, 4.3.11 Potassiumpermanganate(KMnO)solution, 4.3.12 Sodiumperoxide(NaO), 4.3.13 Standard potassium dichromate solution
16 - 4.3.11 Potassium permanganate (KMnO4 ) solution,
16 - 4.3.12 Sodium peroxide (Na2 O2 ),
16 - 4.3.13 Standard potassium dichromate solution
16 - 4.4 APPARATUS
16 - 4.5 SAMPLING
16 - 4.6 PROCEDURE
17 - 4.6.1 Acid-soluble samples
17 - 4.6.2 Acid-insoluble samples
18 - 4.7 CALCULATION
18 - 4.8 PRECISION
18 - 4.9 REPORTING OF RESULTS
19 - SECTION 5 DETERMINATION OF IRON(II) CONTENT
19 - 5.1 SCOPE OF SECTION
19 - 5.2 PRINCIPLE
19 - 5.3 REAGENTS
19 - 5.3.1 General
19 - 5.3.2 Hydrochloric acid,
19 - 5.3.3 Hydrochloric acid,
19 - 5.3.4 Orthophosphoric acid,
19 - 5.3.5 Orthophosphoric acid,
19 - 5.3.6 Sodium diphenylamine sulfonate solution,
19 - 5.3.7 Standard potassium dichromate solution
19 - 5.4 APPARATUS
19 - 5.5 SAMPLING
19 - 5.6 PROCEDURE
20 - 5.7 CALCULATION
21 - 5.8 PRECISION
21 - 5.9 REPORTING OF RESULTS
22 - SECTION 6 DETERMINATION OF PARTICLE SIZE DISTRIBUTION
22 - 6.1 SCOPE OF SECTION
22 - 6.2 APPARATUS
22 - 6.3 SAMPLE
22 - 6.4 PROCEDURE
22 - 6.5 SUB-SIEVE ANALYSIS
23 - SECTION 7 DETERMINATION OF TOTAL MAGNETICS CONTENT
23 - 7.1 SCOPE OF SECTION
23 - 7.2 PRINCIPLE
23 - 7.3 REAGENTS
23 - 7.3.1 Water
23 - 7.3.2 Detergent
23 - 7.4 APPARATUS
23 - 7.4.1 Davis tube tester
23 - 7.4.2 Constant-head tank
23 - 7.4.3 Stopwatch
23 - 7.4.4 Measuring cylinder
23 - 7.4.5 Balance
23 - 7.4.6 Drying oven
23 - 7.4.7 Beaker
23 - 7.4.8 Gauss meter
23 - 7.5 PROCEDURE
23 - 7.5.1 Calibration
23 - 7.5.2 Sample preparation
24 - 7.5.3 Sample introduction
24 - 7.5.4 Determination
25 - 7.6 CALCULATION
25 - 7.7 CALIBRATION OF DAVIS TUBE (See Figure 7.3)

Sets out methods for sampling magnetite, and for determination of total moisture, density, total iron content, ferrous iron content, particle size and magnetics content.

This Standard sets out methods for sampling bulk and bagged magnetite, total moisture determination, and determination of density, total iron, iron(II), particle size and magnetics content.NOTE: For information on laboratory safety, reference should be made to the relevant parts of AS 2243 and AS 2508.

First published as AS 4156.3-1994.