Peters friction apparatus

BAM friction apparatus or Julius Peters friction apparatus The BAM method is an improved method and is reported to yield reproducible results. This apparatus is used extensively in Europe [67]. It consists of a rough porcelain plate which is rigidly attached to the sliding carriage of the friction apparatus. 

The Julius Peters friction apparatus [81, 82], which is extensively used in Europe, originates in a mortar-and-pestle test. It consists of a porcelain plate upon which a sample is located, and a pestle under load rests on the sample. Loads in the range 10-1000 g are applied for primary explosives. By means of an electric mortar the porcelain plate is rotated back and forth in arcs of about 10 mm, the maximum velocity of the pestle relative to the plate being about 7 cm/sec. 

Friction sensitivity >350N for purified FOX-7 (RDX-120N) as recorded on a Julius Peters apparatus. 

Friction sensitivity on Julius Peters apparatus Highly sensitive (exploded at 50 g load) Less sensitive (did not explode even at 200g load)... 

With the Julius Peters apparatus lead azide and mercury fulminate ranked in the same order (Table XV) as those obtained with grit or the sliding-block friction test. 

Friction sensitivity (Julius Peters Apparatus) Insensitive upto 8 kg Insensitive upto 36 kg... 

Figure 2.11. BAM friction sensitivity apparatus (JULIUS PETERS KG, Berlin, Germany)...

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See also in sourсe #XX -- [ ]

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