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[求助]
43.2 gm 8AP 300 Blume
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| 如题什么意思？高手，高手在哪里》》》》？ |
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犇�?
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5楼2013-05-09 12:55:46
犇�?
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2楼2013-05-08 22:38:18
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??????????飬????????????  The most important part of this exhibit is the scattering tube. It is made of plexiglass tubing, 19.5???? long and 2.5?? outside diameter with a 1/4'?? wall thickness for strength. Both ends of the tube have plexiglass windows solvent cemented into place and a filling port is drilled into the side of the tube near one end. A 2"i.d. by 2.5"o.d. ring of black paper, at the projector end, prevents light from travelling down the walls of the tube. The tube is vented as illustrated and is filled with 8AP 300 Blume type gelatins. We have had excellent results with the following formula: 43.2 gm 8AP 300 Blume 1800 ml Sterile distilled water 7.5 gm Sodium Benzoate (as a preservative) First wash anything which will come into contact with the gelatin with a concentrated solution of sodium benzoate. This will sterilize the components and prevent growth of mold (which thrives on gelatin). Mix the ingredients cold and let stand for 15 minutes. Heat in a double boiler to 65 degrees Celsius. Fill and cap the tube. |
3楼2013-05-08 23:05:43
myIDname
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【答案】应助回帖
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感谢参与，应助指数 +1
hanches: 金币+2, 嗯，wiki很好用~感谢应助~~ 2013-05-09 12:35:31
感谢参与，应助指数 +1
hanches: 金币+2, 嗯，wiki很好用~感谢应助~~ 2013-05-09 12:35:31
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"8AP 300 Blume type gelatins"中，blume是不是应该是bloom，是测量明胶强度的一种单位。来自wiki bloom词条：The test determines the weight (in grams) needed by a probe (normally with a diameter of 0.5 inch) to deflect the surface of the gel 4 mm without breaking it. 300 bloom应该是强度很高的了。 我不明白前面的8ap是什么意思。 |
4楼2013-05-09 11:16:11
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