Conversi PtCo ke TCU?

Bagi rekan-rekan yang sering menganalisa sample air pasti ga aneh dong dengan istilah ini, kadang ada yang report dengan satuan PtCo ataupun TCU, cuma mau dilaporkan dengan yang manapun ya ga jadi masalah.

 Yang membedakan adalah TCU itu satuan Sedangkan PtCo itu methode pengukuran warna air limbah dgn standard platinum cobalt dgn satuan bisa mg/l ataupun TCU.
Artinya sama aja.
Misalkan kita mengukur dgn methode PtCo kita bisa report 10 mg/l as ptco atau 10 TCU.

https://secure.gvmg.com/watertechonline/detail.asp?Board_ID=7&Parent_ID=33984

RE: Colour Unit: Scott Crawford, CWS-VI: 8/29/2000 2:43:59 PMThere is basically one common method used to determine color. True color is referred to as the color of water from which the turbidity has been removed. Apparent color is determined on the original sample without any type of filtration. (TCU)

However, the method is still the same asnd is referred to as the platinum-cobalt method. A spectrophotometer is used. For our measurements, the spectrophotometer has been pre-programmed at a specific wavelength based on the APHA-recommended standard of 1 color unit being equal to 1 mg/L platinum as chloroplatinate ion.

The result can be reported as number of units as TCU or units as PtCo APHA. Therefore, the conversion for TCU and PtCo as stated above is the same (1:1) relation.

 

dari kutipan di atas jelas bahwa PtCo : TCU adalah 1:1, jadi jangan bingung lagi ya teman kalo menemukan satuan PrCo atau TCU

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