Glass assembly

Units. Some of the chief units employed for reasonably simple ground glass assemblies are ... 

To establish these conditions and to simplify procedures, a culture tube with a ground glass assembly was eventually developed (Fig. 10.2). Compression of worms within the dialysis tubing permitted insemination to take place, the receptaculum becoming filled with spermatozoa and worms producing eggs with 80% fertility. In contrast, in worms cultured free in the medium, i.e. without compression, the receptaculum remained empty and the eggs infertile. Both these conditions can be provided within the same culture tube (Fig. 10.2) and clearly demonstrate the role of compression in the insemination process (796, 788, 802). 

Each time a ground glass assembly is dismantled the grease should be wiped off and renewed before reassembly otherwise air pockets and streaks, both of which are undesirable, will almost certainly occur. 

Johns Manville - http //www.jm.com E-glass assembled and direct rovings yarns, chopped strands... 

Gauge glass assembly, 21, 263-266 Geiger counter, 40 Gland oil (boHoms-pump pressure loss), 284... 

Determining the interface level in a water/light hydrocarbon settler can be extremely difficult. If both phases are clean, they will also be transparent. First, blow the gauge glass assembly taps out after draining down the gauge glass, allow it to slowly refill (see Chapter 12). The interface can then be seen by its upward motion. For many settlers the aqueous phase will occupy the lower third of the vessel. 

About 1-2 g of a fly ash sample was digested in a closed glass assembly for 1 h with a mixture of cone. HCIO4 and HNO3 (1 3). After complete digestion, the contents were filtered and the filtrate was evaporated to dryness on low flame. The residue was extracted with 0.1 M HCl and the metal ions were detected in the extract after separation on TLC plates. 

The glass assembly used to carry out the alcohol exchange reaction consists of a 50 ml erlenmeyer flask equipped with a 14/20 joint topped with a Liebig condenser with a 14/20 joint. 

Glass assembly for small cross-section joints with filet Will cure Glass assembly with environmental/aesthetic requirements. High ... 

Figure 12.1 Glass assembly with corner fixing used for modern buildings (here Palais des Congres, close to the author s university note glass edges).

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