Free Carbon Dioxide and Chemical Oxygen

Problem-free analyzed carbon dioxide that is in the form of carbon dioxide gas contained in water. The content of CO 2-free in pure water at a pressure of 1 atm and a temperature of 25 ° C is about 0.4 ppm. CO 2 in water is obtained from the air of the diffusion process and the results of the process ...

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Total Hardness

Water hardness is the content of certain minerals in the water, generally ionkalsium (Ca) and magnesium (Mg) in the form garamkarbonat. Hard water or hard water is water that has a high mineral content, while soft water is water with a low mineral levels. In addition to calcium and magnesium ions, can also cause the hardness of the other metal ...

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Waktu Pengambilan Sampel Air

Untuk pemantauan kualitas air, interval waktu pengambilan sampel diatur pada hari dan jam yang berbeda, sehingga dapat diketahui perbedaan kualitas air setiap hari maupun setiap jam. Sebagai contoh apabila pengambilan sampel pertama dilakukan pada hari Senin jam 06.00, maka pengambilan sampel selanjutnya dilakukan pada hari Selasa jam 07.00, dst Frekwensi pengambilan sampel Frekwensi pengambilan sampel untuk keperluan pemantauan dilakukan berdasarkan ...

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Teknik Penanganan Sampel

Setelah pengambilan sampel, air sampel sebaiknya segera dianalisis. Jika terpaksa harus disimpan, setiap parameter kualitas air memerlukan perlakuan tertentu terhadap sampel. Selain perlakuan dengan bahan kimia, pengawetan yang paling umum dilakukan adalah pendinginan pada suhu 4ºC selama transportasi dan penyimpanan. Pada suhu tersebut, aktivitas bekteri terhambat. Sampel yang ditunda pengukurannya dan terpaksa harus dilakukan penyimpanan sebaiknya dilakukan labeling pada botol ...

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The Success of Air Sampling Methods

The success of the sampling method is highly dependent on the equipment for sampling, a technique or way of making, implementation and management as well as the improvement of laboratory analysis. more than 50% of the invalidity of the data analysis of water kuallitas is affected by the sampling technique is not appropriate. a. Determining the location of sampling The ...

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Air Sampling Equipment

Once the location and designation of the sample is determined, it can be done the preparation beforehand infrastructure to facilitate sampling. facilities and infrastructure that need to be prepared include: Water sampling equipment must meet the following requirements: Made of materials that do not affect the properties of the water sample (eg metals for inspection, sampling tool is not made ...

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