| Aliphatic hydrocarbons content. Determination of the C7-C30 hydrocarbons’ sum – gas chromatography |
|
| Determination of ammonium - Part 1: Manual spectrometric method |
PN-ISO 7150-1 |
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 nitrites: molecular absorption spectrometric method |
PN-EN 26777 |
Detection and enumeration of Escherichia coli and coliform bacteria - Membrane filtration method |
PN-EN ISO 9308-1 |
| Enumeration of culturable micro-organisms. Colony count by inoculation in a nutrient agar culture medium |
PN-EN ISO 6222 |
Examination and determination of colour
|
PN-EN ISO 7887 |
Determination of biochemical oxygen demand (BOD) in n-days
|
PN-EN 1899 |
| Determination of free chlorine and total chlorine - Titrimetric method using N,N-diethyl-1,4-phenylenediamine |
PN-ISO 7393-1 |
| 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 free carbon-dioxide in water |
PN-74/ C-04547.01 |
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 total phosphate and o-phosphate content in circulating water |
Internal test method
061/2007 |
| Determination of Kjeldahl nitrogen. Method after mineralization with selenium |
PN-EN 25663 |
| Method for corrosivity of water in the absence of heat transfer (Weight Loss Method) |
ASTM D 2688 |
| Determination of dissociated silica by colorimetric method with ammonium molybdate and methol as a reductant |
PN-71/C-04567.03 |
| Determination of 33 elements by inductively coupled plasma optical emission spectrometry |
PN-EN ISO 11885 |
| Determination of turbidity |
PN-EN ISO 7027 |
| 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 dissolved oxygen—iodometric method |
PN-EN 25813
PN-ISO 5813 |
| Determination of the sum of calcium and magnesium. EDTA titrimetric method |
PN-ISO 6059 |
| Determination of calcium content. EDTA titrimetric method |
PN-ISO 6058 |
| Non-carbonate and carbonate hardness of water and hydrogen carbonate content – calculation method |
Internal test method
059/2007 |
Determination of permanganate index |
PN-EN ISO 8467 |
| Determination of total and phenolphtaleine alkalinity |
PN-EN ISO 9963-1 |
| 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 |
| Determination of the total number of bacteria, fungi and yeasts and sulphate-reducting bacteria – biological test method |
According to the producer’s guidelines |