MSC 85/26/Add.2 ANNEX 3 RESOLUTION MSC.268(85) - US Coast ...
MSC 85/26/Add.2 ANNEX 3 RESOLUTION MSC.268(85) - US Coast ... MSC 85/26/Add.2 ANNEX 3 RESOLUTION MSC.268(85) - US Coast ...
MSC 85/26/Add.2ANNEX 3Page 338Peat MossFor all Peat Moss, determine the bulk density, using either the ASTM or CEN (20 litres) method.Peat should be above or below 90kg/cubic metre on a dry weight basis in order to obtain thecorrect TML.As indicated in 1.1.1, the following should be determined:.1 the moisture content of a sample of cargo (MC);.2 the flow moisture point (FMP);.3 the transportable moisture limit (TML). The TML will be determined as follows:.3.1 for peat with a bulk density of greater than 90 kg/cubic metre on a dry weight is85% of the FMP; and.3.2 for peat with a bulk density of 90 kg/cubic metre or less on a dry weight,the TML is 90% of the FMP.1.2 Penetration test procedureThe penetration test constitutes a procedure whereby a material in a cylindrical vessel is vibrated.The flow moisture point is determined on the basis of the penetration depth of an indicator.1.2.1 Scope.1 The penetration test is generally suitable for mineral concentrates, similarmaterials, and coals up to a top size of 25 mm..2 In this procedure, the sample, in a cylindrical vessel, is subjected to verticalvibration of 2g rms + 10% (g = gravity acceleration) for 6 minutes. When thepenetration depth of a bit put on the surface exceeds 50 mm, it is judged that thesample contains a moisture greater than the flow moisture point..3 This procedure consists of a preliminary test to get an approximate value of theflow moisture point and a main test to determine the accurate flow moisture point.When the approximate value of the flow moisture point is known, the preliminarytest can be omitted..4 The room where the samples are tested should be prepared as mentioned in 1.1.3.1.2.2 Apparatus (see figure 1.2.2).1 The test apparatus consists of:.1 a vibrating table;I:\MSC\85\26-Add-2.doc
MSC 85/26/Add.2ANNEX 3Page 339.2 cylindrical vessels;.3 indicators (penetration bits and a holder);.4 a tamper (see 1.1.2.4); and.5 ancillary equipment (see 1.1.2.5 to .8)..2 The vibrator (see figure 1.2.2.2), with a table on which a cylindrical vessel canbe clamped, should be capable of exciting a mass of 30 kg at a frequency ofeither 50 Hz or 60 Hz with an acceleration of 3g rms or more, and it can becontrolled to adjust the acceleration level..3 Dimensions of cylindrical vessels (see figures 1.2.2.3-1 and 1.2.2.3-2) are asfollows:Cylinder size Inner diameter Depth Wall thicknesssmalllarge146 mm194 mm202 mm252 mm9.6 mm or more10.3 mm or moreThe vessels should be made of reasonably rigid, non-magnetic, impermeable andlightweight material such as acrylics or vinyl chloride.The small cylindrical vessel is selected for the materials having a maximumparticle size of 10 mm or less. The large cylindrical vessel is for those having amaximum particle size of 25 mm or less..4 Penetration bits (see figure 1.2.2.4) are made of brass. The mass of the bit for coalshould be adjusted to 88 g (5 kPa), and that for concentrates to 177 g (10 kPa).When the sample contains coarse particles, it is recommended that two bits of thesame pressure are put on the surface to avoid misjudgment..5 A holder (see figure 1.2.2.5) should be made to guide the rod of a bit withminimum friction to the centre of a cylindrical vessel. When two bits are used,they should be positioned in accordance with figure 1.2.2..6 A cylindrical vessel and penetration indicators should be selected in accordancewith the nature and condition of the test sample, viz. size of particles andbulk density.I:\MSC\85\26-Add-2.doc
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<strong>MSC</strong> <strong>85</strong>/<strong>26</strong>/<strong>Add.2</strong><strong>ANNEX</strong> 3Page 338Peat MossFor all Peat Moss, determine the bulk density, using either the ASTM or CEN (20 litres) method.Peat should be above or below 90kg/cubic metre on a dry weight basis in order to obtain thecorrect TML.As indicated in 1.1.1, the following should be determined:.1 the moisture content of a sample of cargo (MC);.2 the flow moisture point (FMP);.3 the transportable moisture limit (TML). The TML will be determined as follows:.3.1 for peat with a bulk density of greater than 90 kg/cubic metre on a dry weight is<strong>85</strong>% of the FMP; and.3.2 for peat with a bulk density of 90 kg/cubic metre or less on a dry weight,the TML is 90% of the FMP.1.2 Penetration test procedureThe penetration test constitutes a procedure whereby a material in a cylindrical vessel is vibrated.The flow moisture point is determined on the basis of the penetration depth of an indicator.1.2.1 Scope.1 The penetration test is generally suitable for mineral concentrates, similarmaterials, and coals up to a top size of 25 mm..2 In this procedure, the sample, in a cylindrical vessel, is subjected to verticalvibration of 2g rms + 10% (g = gravity acceleration) for 6 minutes. When thepenetration depth of a bit put on the surface exceeds 50 mm, it is judged that thesample contains a moisture greater than the flow moisture point..3 This procedure consists of a preliminary test to get an approximate value of theflow moisture point and a main test to determine the accurate flow moisture point.When the approximate value of the flow moisture point is known, the preliminarytest can be omitted..4 The room where the samples are tested should be prepared as mentioned in 1.1.3.1.2.2 Apparatus (see figure 1.2.2).1 The test apparatus consists of:.1 a vibrating table;I:\<strong>MSC</strong>\<strong>85</strong>\<strong>26</strong>-Add-2.doc
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