LHYQ

Apparatus: ( ASTM D3612 )
1: Headspace Sampler（Shanghai Sida）
2: Gas Chromatograph （Shanghai LingHua）
3: Molecular Sieve,5 Å PLOT column (30-m by 0.53-mm inside diameter with a film thickness of 50 µm) for the separation of the lighter gases (H₂, O₂ , N₂ , CH₄ , and CO).
4: Carboxen-1006 PLOT Column (30-m by 0.53-mm inside diameter) for the separation of the other compounds(CO₂, C₂H₂, C₂H₄, C₂H₆, and C₃H₈).
5: Catalytic Converter, containing powdered nickel in-stalled between the TCD and the FID, for the conversion of CO and CO₂ into CH₄ for a sensitive recording of the signal by the FID.
6: Zero-dead Volume Adapter, for the column connections(0.53-mm inside diameter).
7: Headspace Glass Vials, of 20-mL nominal capacity.
8: Crimping System, including crimp head and a decapper head.
9: Perforated Aluminum Caps.
10: TFE-fluorocarbon Faced Butyl Septa for headspace vials.
11: Glass Syringes, 30-mL equipped with three-way plastic stopcocks.
12: Needles, 18G1 and 26G^1/2 .
13: Pressure Regulators, two-stage, with a delivery pres-sure adjusted at 20.7 Kpa (3 psi) for the cylinders containing the argon and the calibrating gases