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Environmental testing

Sewage analyses

Tested parametr Test method
Determination of suspended solids - Method by filtration
through glass fibre filters
PN-EN 872
Determination of iron - Spectrometric method using 1,10-phenanthroline. PN-ISO 6332
Determination of total chromium – colorimetric method with
diphenylcarbazide
PN-77/C-04604/02
Determination of hexavalent chromium (Cr6+) and trivalent chromium (Cr3+) PN-77/C-04604/08
Aliphatic hydrocarbons content. Determination of the C7-C30
hydrocarbons’ sum – gas chromatography

089/PN-94/C-04643

Determination of ammonium - Distillation and titration method PN-ISO 5664
Determination of benzene and some derivatives -
Part 2: Method using extraction and gas chromatography

ISO 11423-2

Total nitrogen content. Calculation method Internal test method 047/2007
Determination of nitric nitrogen – colorimetric method with sodium salicylate PN-82/C-04576.08
Determination of biochemical oxygen demand (BOD) in n-days PN-EN 1899
Determination of chloride - Silver nitrate titration with chromate
indicator (Mohr's method)

PN-ISO 9297

Determination of the chemical oxygen demand (COD) – dichromate method 037/2007/PN-74/C-04578/03
Determination of the chemical oxygen demand index (ST-COD)
- Small-scale sealed-tube method

PN-ISO 15705

Determination of anionic surfactants by measurements of the
methylene blue index. MBAS

PN-EN 903

Determination of phenol index - 4-Aminoantipyrine spectrometric methods after distillation

PN-ISO 6439

Determination of phosphorus - Ammonium molybdate spectrometric method PN-EN ISO 6878
Determination of Kjeldahl nitrogen. Method after mineralization with selenium PN-EN 25663
Determination of furfural content in industrial sewage Internal test method 067/2008
Determination of 33 elements by inductively coupled plasma optical emission spectrometry PN-EN ISO 11885
Determination of the pH value of water and sewage with electrolytic
conductivity of 10 uS/cm
and more – electrometric method

PN-90/C-04540.01

Determination of the total content of organic substances extractable
with petroleum ether – weight method

PN-86/C-04573.01

Determination of sulphates(VI) with gravimetric method with barium chloride PN-ISO 9280
Determination of sulphides in water and sewage Internal test method 043/2007
Determination of dry residue, residue on ignition, loss on ignition and dissolved substances,
dissolved mineral substances and dissolved volatile substances

022/2006/PN-78/C-04541

Determination of the polar and non-polar organic substances extractable with petroleum ether – weight method

PN-74/ C-04573.02

Determination of dissolved oxygen—iodometric method PN-EN 25813
PN-ISO 5813