Solution viscosity - capillary viscometry

Determination of the dynamic shear viscosity using a rotary rheometer. The displayed price includes a shear rate ramp test at a specified temperature. Please specify the following upon ordering the test: desired testing temperature (max. 200 °C), desired shear rate range (from 0,1 s^-1 to 100 s^-1). The set-up configuration of the rheometer can be chosen based on the sample type (the most common options are parallel plate and cone-and-plate). Do not hesitate to ask for a quote for a custom viscosity testing program. For example: temperatures from -20 to 600 °C, and shear rate ranges from 0,01 to 1,000 s^-1 are possible, as well as rotational and oscillatory measurements, time and temperature sweeps, etc.

X-Ray Reflectometry (XRR) analysis is used to measure the density (g/cm3), thickness (nm), and roughness (nm) of thin films. The method is applicable to the characterization of single- or multilayered thin films, as it provides information on the thickness and density of individual layers of the sample material as well as the roughness of the interphases. Greatest accuracy for XRR thickness measurements is generally achieved for samples containing 1-150 nm thick surface layers with under 5 nm RMS roughness. Thicker films and coatings with rougher surfaces can also be characterized, but the accuracy of thickness determination decreases as the thickness and roughness of the film or film stack increase. >150 mm wafers are typically cut to fit the sample holder. Please let us know if you need testing for larger wafers that cannot be cut into pieces. The available temperature range for XRR measurements is 25-1100 °C, and crystallinity can be studied as a function of temperature. The measurements can be performed under a normal atmosphere, inert gas, or vacuum. Measurements are typically performed using one of the following instruments: Rigaku SmartLab, Panalytical X'Pert Pro MRD, Bruker D8 Discover. Please let us know if you have a preference for a specific instrument.

This test is designed to measure the oxygen transmission rate of finished packages, including cups, bottles, trays, and containers. Two replica measurements are included in the displayed price. Temperature can be adjusted from 15 to 55 °C, and relative humidity can be either 0% or between 5 and 90% RH. This test is not suitable for films. Please see the oxygen transmission rate (OTR) of films and sheeting if you need testing for film samples. Please specify the sample dimensions and testing conditions upon ordering.

Phthalates are a group of chemicals widely used as plasticizers, which make plastics more flexible and durable. They have also been used as additives in products such as cosmetics and personal care items. Several phthalates have been identified as endocrine-disrupting agents or as chemicals toxic to reproduction. Exposure to phthalates can occur through: Oral exposure Food: Exposure occurs via migration from food packaging., Children's toys: Children often put toys in their mouths.., Inhalation: Breathing in dust from vinyl flooring or fragrances (like perfumes) can cause exposure to phthalates via inhalation., Skin contact: Phthalates present in cosmetics, lotions, and soaps can be absorbed through the skin.. For other listed matrices apart from cosmetics, the analysis package covers the following substances included in the REACH Authorization List: Substance Abbreviation CAS number Diisobutyl phthalate DIBP 84-69-5 Dibutyl phthalate DBP 84-74-2 Benzyl butyl phthalate BBP 85-68-7 Bis(2-ethylhexyl) phthalate DEHP 117-81-7 Di(n-octyl) phthalate DNOP 117-84-0 Diisononyl phthalate DINP 68515-48-0 Diisodecyl phthalate DIDP 26761-40-0 Products that contain restricted phthalates in concentrations higher than 0.1% may be removed from the market. The analysis package for cosmetic products contains the following phthalates: Substance Abbreviation CAS number Bis(2-ethylhexyl) phthalate DEHP 117-81-7 Benzyl butyl phthalate BBP 85-68-7 Dibutyl phthalate DBP 84-74-2 Diisononyl phthalate DINP 68515-48-0 Di(n-octyl) phthalate DNOP 117-84-0 Diisodecyl phthalate DIDP 26761-40-0 All the above-mentioned substances are prohibited in cosmetic products (Annex II of Regulation (EC) No 1223/2009).

Analysis for quantifying dioxins and furans (PCDD/F) in various packaging materials (e.g. food and cosmetics packaging) and their raw materials, including plastics, paper, and rubber. Dioxins and furans are a family of chlorine-containing chemicals considered bioaccumulating, persistent organic pollutants (POPs) that can be toxic even at low doses. While regulatory limits apply mainly to food and feed, packaging materials can be a source of indirect exposure to dioxins and furans. Recycled materials tend to pose relatively high risks, depending on the quality of the raw material and the effectiveness of the decontamination process. The following substances are included in the analysis: Dibenzo-p-dioxins (PCDDs) Polychlorinated dibenzofurans (PCDFs) 2,3,7,8-TCDD. 2,3,7,8-TCDF. 1,2,3,7,8-PeCDD. 1,2,3,7,8-PeCDF. 1,2,3,4,7,8-HxCDD. 2,3,4,7,8-PeCDF. 1,2,3,6,7,8-HxCDD. 1,2,3,4,7,8-HxCDF. 1,2,3,7,8,9-HxCDD. 1,2,3,6,7,8-HxCDF. 1,2,3,4,6,7,8-HpCDD. 1,2,3,7,8,9-HxCDF. OCDD. 2,3,4,6,7,8-HxCDF. 1,2,3,4,6,7,8-HpCDF. 1,2,3,4,7,8,9-HpCDF. OCDF. Testing is often performed for the following reasons: Analyzing recycled PE, PP, and LDPE intended for cosmetics packaging according to CosPaTox guidelines., Analyzing paper and board bleached with elementary chlorine according to the requirements of TemaNord 2008:515 guidelines..

Determination of vinyl chloride [CAS: 75-01-4] content in plastics. Both the European Chemicals Agency (ECHA) and the US Environmental Protection Agency (EPA) have identified vinyl chloride as a carcinogen. According to Regulation (EU) No 10/2011 on plastic food contact materials, vinyl chloride content in the final product must not exceed 1 mg/kg. In addition, the substance has a specific migration limit of ND, which means that there must be no detectable migration into food.

Standard ISO 22196 outlines a method for evaluating the antibacterial activity of plastics and other non-porous surfaces. The procedure involves inoculating the sample with a specified concentration of bacteria, typically Staphylococcus aureus or Escherichia coli, and incubating it under controlled conditions. After incubation, the number of viable bacteria on the test surface is compared to that on an untreated control surface. The difference is quantified as a logarithmic reduction, indicating the level of antibacterial activity. This method is widely recognized as reproducible and consistent, making it a reliable tool for assessing the efficacy of antibacterial treatments in industries such as healthcare, packaging, and consumer products. The lower end of the price range applies to testing with one bacterial strain, while the higher end includes analyses with both S. aureus and E. coli.

This metal screening analysis includes the semi-quantitative determination of 70 elements. The method can be used, for example, to determine the background concentrations of metals in environmental samples or to study the elemental distribution of unknown samples. Screening is also often performed to assess which metals should be analyzed by a quantitative method. The measurement is performed using a high-resolution ICP-MS technique (ICP-SFMS), which can identify very low elemental concentrations. A semi-quantitative determination of the following elements is included: Ag, Al, As, Au, B, Ba, Be, Bi, Br, Ca, Cd, Ce, Co, Cr, Cs, Cu, Dy, Er, Eu, Fe, Ga, Gd, Ge, Hf, Hg, Ho, I, Ir, K, La, Lu, Mg, Mn, Mo, Na, Nb, Nd, Ni, Os, P, Pb, Pd, Pr, Pt, Rb, Re, Rh, Ru, S, Sb, Sc, Se, Si, Sm, Sn, Sr, Ta, Tb, Te, Th, Ti, Tl, Tm, U, V, W, Y, Yb, Zn and Zr. However, please note that some elements may not be determinable due to matrix interference. During this semi-quantitative analysis, the instrument is calibrated for about 30 elements. The rest of the analytes are quantified using sensitivity factors for calibrated elements with similar mass and first ionization potential, considering isotope abundances. Quantitative analysis is also available at an additional price. During this analysis, all elements are calibrated (excluding halogens and Os). Please ask for an offer for this service.

The molar mass distribution of biomass samples soluble in pure water or organic solvents (DMF, DMSO, and THF) is measured using size exclusion chromatography with a refractive index detector (SEC-RID). The system is calibrated with polystyrene and dextran standards. A Pullulan standard is also available upon request. In the case of lignin samples, molar mass distribution is analyzed using SEC coupled with an ultraviolet detector at 256 nm wavelength. The lignin is dissolved in a suitable solvent before analysis, and the SEC system is calibrated with a polystyrene sulfonate standard. A borate buffer is used to set the pH for the eluent. The weight-average molecular weight (Mw) and number-average molecular weight (Mn) are reported. For absolute molecular weight, a GPC system coupled with a multi-angle light scattering (MALS) detector can be used. The mobile phase for this system is THF. An additional cost applies to this method.

Determination of aerobic biodegradability in seawater according to OECD 306, applicable to chemicals and organic materials dissolved or dispersed in collected seawater. Two test formats are available: shake flask and closed bottle. Seawater is sampled from the field and characterized for temperature, salinity, and optionally DOC and other parameters before use; it may be filtered, settled, or aged prior to incubation. Incubations are carried out in closed glass containers under aerobic conditions at approximately 15–20°C in the dark or under diffuse light for up to 60 days. The shake-flask format tracks ultimate degradation by repeated DOC measurements over time, quantified by persulfate/UV, persulfate with elevated temperature, or high-temperature combustion. , The closed-bottle format monitors dissolved oxygen consumption at defined intervals (e.g. days 0, 5, 15, and 28). Ancillary options include heterotrophic plate counts, ATP or other microbial-activity assays, and specific chemical analysis of the test substance.. Results are presented as time-course degradation curves. Shake-flask outputs report DOC-based curves with lag phase, slope, and t50, with percentage degradation typically reported at 60 days. Closed-bottle outputs report oxygen-uptake curves with lag phase and t50, with percentage degradation reported at 28 days or test conclusion. Data are compiled on standardized sheets with validity checks. The method is referenced in several regulatory persistence and biodegradability assessment frameworks. Under REACH, OECD 306 is recognised by ECHA as a ready biodegradability test method alongside OECD 301 and 310, and data generated under the guideline can be submitted in REACH registration dossiers to fulfil information requirements on environmental fate and behaviour. OECD 306 is also listed as an accepted ready-biodegradability method under the REACH microplastics restriction (Commission Regulation (EU) 2023/2055, Appendix 15). Additionally, the EU Ecolabel for lubricants lists OECD 306 as a recommended biodegradability test method.