1. Temp. Range: Amb.+5C to 150C 2. Time Range: 99h59min 3. Temp. Discrepancy: plus-minus 0.5C Sample Concentrator-ND100-1 The ND100 consists of a base and stand assembly, sample holder and gas distribution system. Test tubes are held in a block . The gas at 5 to 10 psig passes through the distribution manifold. Depending on the test-tube size and solvent volume they can be individually raised or ...