The main chemical laboratory

The main chemical laboratory is equipped with modern measuring equipment which allows the analysis of different materials in accordance with national and international standards. Methods for the analysis of wastewater are accredited by Slovenian accreditation.


Nataša Bratun

Head of Chemistry Sector

Tel. +386 4 584 1056

E-mail: natasa.bratun@acroni.si

Research and development

Cesta Borisa Kidriča 44

4280 Jesenice

Tel.: 04 584 13 02

Email: raziskave.razvoj@acroni.si


1. INVESTIGATIONS

Parameter                                                     Method

Sampling                                                         SIST ISO 5667-10
Temperature                                                    SIST DIN 38404-C4
pH                                                                   SIST ISO 10523
Sample homogenization                                    SIST DIN - A30
Suspended solids                                             SIST ISO 11923
Settled substances                                           SIST DIN 38409-H9
Hexavalent chromium                                       SIST ISO 11083
Iron                                                                 SIST ISO 6332
Free chlorine                                                 SIST EN ISO 7393-2 mod.
Total chlorine                                                 SIST EN ISO 7393-2 mod.
Fluoride, chloride, orthophosphate,               SIST EN ISO 10304-1 mod F
nitrate, sulfate

Total phosphorus and orthophosphorus        SIST EN ISO 6878
Nitrite nitrogen                                              SIST SIST EN 26777

Total nitrogen                                                 SIST EN 12260
COD                                                              DIN 38409 H 41
BOD5                                                             SIST EN 1899-1, SIST EN 1899-2
Ammonium nitrogen                                      SIST ISO 7150 / 1
Heavy volatile lipophilic substances              Extraction - gravimetry
Electrical conductivity                                   SIST ISO 27888
Metals (Cr, Ni, Zn, Pb, Mn, Cu, Cd, Al, Sn) ISO 11885

TOC, DOC                                                    ISO 8245


2. INVESTIGATION OF WASTE

Leachability of waste                                     SIST EN 12457-4
Dry 105 ° C                                                   gravimetry
Muffle the loss of 550 o C                             gravimetry
Digestion of waste
pH                                                                  SIST ISO 10523
Electrical conductivity                                   SIST ISO 27888
Total dissolved substances                           gravimetry                 


Metals and anions                                         Standard methods for the analysis of waste water 


3. STEEL ANALYSIS

Low, medium and high alloyed steel, gray iron                    Acid degradation, degradation in

                                                                                              microwave
C, S, Si, P, Mn, Cr, Ni, Cu, Co, Al, Ti, Mo                           Titrimetry, gravimetry, SPF, AAS,
Pb, Sn, Mg, Zn, Ce, La, Bi, Zr                                              ICP-OES, LECO, OES, XRF

4. ANALYSIS OF SLAG

CaO, MgO, Al2O3, FeO, Fe2O3                                            digestion in the microwave,
F, P2O5, MnO, Cr2O3, TiO2                                                  Titrimetry, gravimetry, SPF, AAS
C, S                                                                                       LECO


5. OTHER INVESTIGATIONS

PS Mod ISO 3675                                                     VISCOMETER
Kinematic viscosity                                                   ISO 3104 Mod VISCOMETER
Dynamic viscosity                                                     ISO 3104 Mod VISCOMETER
ISO 2909

Viscosity index calculation
Water content - KF titration                                       ISO 670
Water content - Distillation                                        EN ISO 9029
Neutralization                                                            ISO 6618
Saponification number                                              ISO 6293 (IP 136)
Determination of metals in oil                                   AAS, ICP-OES
Ash 800°C                                                                 ISO 6245 (IP4/94)
Dielectric strength                                                     IEC 156
Mechanical impurities                                                           Gravimetry