- Teks
- Sejarah
The chemical oxygen demand test is
The chemical oxygen demand test is used widely to estimate the amount of organic matter in waste water. It is a measurement of the oxygen equivalent of the materials present in the waste water that are subject to oxidation by a strong chemical oxidant, in this case dichromate. The ultra low range COD reagent is designed for use with water and waste water effluent samples. In the reactor digestion method test, the COD procedure is greatly simplified. 2 ml water samples are pipetted into vials are digest at 150⁰C for two hour and cooled.then the COD determination is made with a
Because of the low measurement and sensitivity of this method t is important the container does not contribute to final COD measurement. Collect sample in glass bottles if possible. Plastics bottle can be used only o if they are known to be free of organic contamination. Biologically active sample should be tested as son as possible. Sample containing solids should to well-mixed or homogenized to permit the removal of a representative aliquot. Note : the following storage instruction are necessary only when prompt analysis is impossible. Add two ml sulfuric acid, ACS, for each liter or quart of sample using a glass serological pipet and pipet filler. Mix. Check the sample to be sure the pH is 2 or less. Add more acid if necessary. Sample preserved in ths manner can be stored for 7 days. Where significant amounts of preservatives are used, a volume correction should be made for the extra acid by dividing the total volume (sample + acid) by the sample volume and multiplying the test result by this factor.
Because of the low measurement and sensitivity of this method t is important the container does not contribute to final COD measurement. Collect sample in glass bottles if possible. Plastics bottle can be used only o if they are known to be free of organic contamination. Biologically active sample should be tested as son as possible. Sample containing solids should to well-mixed or homogenized to permit the removal of a representative aliquot. Note : the following storage instruction are necessary only when prompt analysis is impossible. Add two ml sulfuric acid, ACS, for each liter or quart of sample using a glass serological pipet and pipet filler. Mix. Check the sample to be sure the pH is 2 or less. Add more acid if necessary. Sample preserved in ths manner can be stored for 7 days. Where significant amounts of preservatives are used, a volume correction should be made for the extra acid by dividing the total volume (sample + acid) by the sample volume and multiplying the test result by this factor.
0/5000
The chemical oxygen demand test is used widely to estimate the amount of organic matter in waste water. It is a measurement of the oxygen equivalent of the materials present in the waste water that are subject to oxidation by a strong chemical oxidant, in this case dichromate. The ultra low range COD reagent is designed for use with water and waste water effluent samples. In the reactor digestion method test, the COD procedure is greatly simplified. 2 ml water samples are pipetted into vials are digest at 150⁰C for two hour and cooled.then the COD determination is made with a
Because of the low measurement and sensitivity of this method t is important the container does not contribute to final COD measurement. Collect sample in glass bottles if possible. Plastics bottle can be used only o if they are known to be free of organic contamination. Biologically active sample should be tested as son as possible. Sample containing solids should to well-mixed or homogenized to permit the removal of a representative aliquot. Note : the following storage instruction are necessary only when prompt analysis is impossible. Add two ml sulfuric acid, ACS, for each liter or quart of sample using a glass serological pipet and pipet filler. Mix. Check the sample to be sure the pH is 2 or less. Add more acid if necessary. Sample preserved in ths manner can be stored for 7 days. Where significant amounts of preservatives are used, a volume correction should be made for the extra acid by dividing the total volume (sample + acid) by the sample volume and multiplying the test result by this factor.
Because of the low measurement and sensitivity of this method t is important the container does not contribute to final COD measurement. Collect sample in glass bottles if possible. Plastics bottle can be used only o if they are known to be free of organic contamination. Biologically active sample should be tested as son as possible. Sample containing solids should to well-mixed or homogenized to permit the removal of a representative aliquot. Note : the following storage instruction are necessary only when prompt analysis is impossible. Add two ml sulfuric acid, ACS, for each liter or quart of sample using a glass serological pipet and pipet filler. Mix. Check the sample to be sure the pH is 2 or less. Add more acid if necessary. Sample preserved in ths manner can be stored for 7 days. Where significant amounts of preservatives are used, a volume correction should be made for the extra acid by dividing the total volume (sample + acid) by the sample volume and multiplying the test result by this factor.
Sedang diterjemahkan, harap tunggu..
Tes kebutuhan oksigen kimia digunakan secara luas untuk memperkirakan jumlah bahan organik dalam air limbah. Ini adalah pengukuran setara oksigen dari bahan yang ada dalam air limbah yang memiliki oksidasi oleh oksidan kimia yang kuat, dalam hal ini dikromat. Ultra low range COD reagen dirancang untuk digunakan dengan air dan limbah sampel limbah air. Pada uji metode pencernaan reaktor, prosedur COD sangat sederhana. 2 ml sampel air dipipet ke dalam botol yang mencerna di 150⁰C selama dua jam dan cooled.then penentuan COD dibuat dengan
Karena pengukuran yang rendah dan sensitivitas dari metode ini t penting wadah tidak memberikan kontribusi pengukuran COD akhir. Kumpulkan sampel dalam botol kaca jika memungkinkan. Botol plastik dapat digunakan o jika mereka diketahui bebas dari kontaminasi organik. Biologis sampel aktif harus diuji sebagai anak mungkin. Sampel yang mengandung padatan harus ke tercampur atau homogen untuk mengizinkan penghapusan alikuot perwakilan. Catatan: instruksi penyimpanan berikut ini diperlukan hanya jika analisis cepat tidak mungkin. Menambahkan dua asam sulfat ml, ACS, untuk setiap liter atau liter sampel menggunakan kaca pipet serologis dan pipet filler. Campur. Periksa sampel untuk memastikan pH 2 atau kurang. Tambahkan lebih banyak asam jika diperlukan. Sampel diawetkan dengan cara THS dapat disimpan selama 7 hari. Dimana sejumlah besar bahan pengawet yang digunakan, koreksi volume yang harus dibuat untuk asam ekstra dengan membagi total volume (sampel + asam) dengan volume sampel dan mengalikan hasil tes oleh faktor ini.
Karena pengukuran yang rendah dan sensitivitas dari metode ini t penting wadah tidak memberikan kontribusi pengukuran COD akhir. Kumpulkan sampel dalam botol kaca jika memungkinkan. Botol plastik dapat digunakan o jika mereka diketahui bebas dari kontaminasi organik. Biologis sampel aktif harus diuji sebagai anak mungkin. Sampel yang mengandung padatan harus ke tercampur atau homogen untuk mengizinkan penghapusan alikuot perwakilan. Catatan: instruksi penyimpanan berikut ini diperlukan hanya jika analisis cepat tidak mungkin. Menambahkan dua asam sulfat ml, ACS, untuk setiap liter atau liter sampel menggunakan kaca pipet serologis dan pipet filler. Campur. Periksa sampel untuk memastikan pH 2 atau kurang. Tambahkan lebih banyak asam jika diperlukan. Sampel diawetkan dengan cara THS dapat disimpan selama 7 hari. Dimana sejumlah besar bahan pengawet yang digunakan, koreksi volume yang harus dibuat untuk asam ekstra dengan membagi total volume (sampel + asam) dengan volume sampel dan mengalikan hasil tes oleh faktor ini.
Sedang diterjemahkan, harap tunggu..
Bahasa lainnya
Dukungan alat penerjemahan: Afrikans, Albania, Amhara, Arab, Armenia, Azerbaijan, Bahasa Indonesia, Basque, Belanda, Belarussia, Bengali, Bosnia, Bulgaria, Burma, Cebuano, Ceko, Chichewa, China, Cina Tradisional, Denmark, Deteksi bahasa, Esperanto, Estonia, Farsi, Finlandia, Frisia, Gaelig, Gaelik Skotlandia, Galisia, Georgia, Gujarati, Hausa, Hawaii, Hindi, Hmong, Ibrani, Igbo, Inggris, Islan, Italia, Jawa, Jepang, Jerman, Kannada, Katala, Kazak, Khmer, Kinyarwanda, Kirghiz, Klingon, Korea, Korsika, Kreol Haiti, Kroat, Kurdi, Laos, Latin, Latvia, Lituania, Luksemburg, Magyar, Makedonia, Malagasi, Malayalam, Malta, Maori, Marathi, Melayu, Mongol, Nepal, Norsk, Odia (Oriya), Pashto, Polandia, Portugis, Prancis, Punjabi, Rumania, Rusia, Samoa, Serb, Sesotho, Shona, Sindhi, Sinhala, Slovakia, Slovenia, Somali, Spanyol, Sunda, Swahili, Swensk, Tagalog, Tajik, Tamil, Tatar, Telugu, Thai, Turki, Turkmen, Ukraina, Urdu, Uyghur, Uzbek, Vietnam, Wales, Xhosa, Yiddi, Yoruba, Yunani, Zulu, Bahasa terjemahan.
- Assalamualaikum wr.wb.Let us together pr
- Kami tetap membanting sampai mati
- Well dear I understand your point .. Dea
- Sure
- Well dear I understand your point .. Dea
- Kami tetap membanting sampai mati
- Well dear I understand your point .. Dea
- Take care
- the foreign exchange market opens on mon
- SELESAI PROSES DOWNLOAD
- Salam kenal
- Kami tetap membanting
- Defining which risks the program will ma
- The long hand is at number ten and the s
- Defining which risks the program will ma
- Kami tetap membanting sampai mati
- The long hand is at number ten and the s
- because foreign exchange dealers are in
- Ya allah nggak enak badan aku kuat kan a
- je vous plains aussi cher
- Kami terus membanting
- Saya sedang pergi ke makasar...besok lus
- as the day progresses,markets open in to
- je vous plains aussi cher
