Knowledge base
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Knowledge base

As an experienced wholesaler, working professionally with liquids and other media is close to our hearts. We know from our own experience how important it is to have the necessary know-how to achieve high-quality results.

That is why we are continuously working on expanding our knowledge and improving our skills. Our goal is not only to use this expertise for ourselves but also to pass it on to our customers and interested parties. We are convinced that everyone can benefit from our know-how, whether a beginner or an experienced professional. In this area, we offer you extensive opportunities true to the motto "helping you help yourself".

Our know-how articles give you detailed insights into the subject matter and help you to improve your skills. And should you have further questions, our knowledge base area is available to you around the clock. In our constantly expanding "Know-How Database", you will find not only general information about the properties of plastics but also specific tools for selecting suitable plastic containers, plastic bottles, measuring vessels, and other products. Furthermore, we also offer interesting articles covering the entire topic complex, such as our popular category "Products in Action".

So here you will find everything you need to improve your skills in the professional handling of liquids and other media and to stay up to date.

Read and Decode UN Dangerous Goods Packaging Codes
by: Tom van Thiel   21.10.2026
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How to read the UN marking on dangerous goods packaging Packagings for dangerous goods need a design type approval under the international dangerous goods regulations (e.g. ADR for road, RID for rail, the IMDG Code for sea and the ICAO-TI/IATA DGR for air transport). Every approved packaging bears a durable UN marking. It shows which test requirements the design type has passed: type of packaging and material, packing group, relative density or gross mass, test pressure, year of manu...
Chemical Resistance Chart for Pressure Sprayers
by: Tom van Thiel   19.10.2026
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Chemical resistance chart for pressure sprayers This chart helps you find the right pressure sprayer model for your medium. Search for your medium, check the maximum concentration and click the model name in the table header to go straight to the product. Chemical resistance (PDF) Search medium × Upper/lower case and hyphens do not matter. Common synonyms such as formic acid or mineral spirits are recognised, a...
Chemical Resistance of Plastics – Resistance Chart
by: Tom van Thiel   19.10.2026
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Chemical Resistance of Plastics Our chemical resistance chart serves as a guide when selecting the appropriate plastic material (HDPE / PE-HD, LDPE / PE-LD, PETG, PP, and rigid PVC / PVC-U) at 20 °C and 50 °C. Filter directly by medium or highlight a specific plastic material in the table. Download Chemical Resistance Chart for Plastics (PDF, German) Search medium × Case-insensitive and hyphen-tolerant. C...
Properties of Plastics - PE, PP, PET, PVC & More at a Glance
by: Tom van Thiel   19.10.2026
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Our extensive range includes information on special plastics with particular properties that meet the requirements of a wide range of fields such as laboratories, industry, packaging and other applications. Our plastic products stand out for their high quality, resistance and durability. We offer a wide variety of plastics such as polyethylene, polypropylene, polyvinyl chloride and many more. If you need further information on a particular plastic or have an individual enq...
Water Sampling in Glass vs. Plastic: Sterilization, Operational Costs, and Environmental Impact
by: Tom van Thiel   30.05.2024
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TLDR: This technical comparison evaluates glass and plastic containers for water sampling across sterilization efficiency, operational expenditure, and life cycle environmental impact. While reusable borosilicate glass allows thermal autoclaving and depyrogenation, it requires labor- and energy-intensive reprocessing with persistent cross-contamination risks. Pre-sterilized single-use plastic containers (e-beam irradiated to ISO 11137) offer immediate operational readiness, integrated batch t...
Square HDPE Bottles with Red Screw Cap (50 to 1,000 ml)
by: Jens Michael Bohn   30.05.2024
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New in our product range: Our high-quality square HDPE bottles (natural/translucent) in capacities from 50 to 1,000 ml are now also available with red or white screw caps. They are ideally suited for sample shipping, filling, storage, and commercial packaging across the chemical-technical sector and numerous other industrial applications. The color-coded closures provide quick visual differentiation between liquids, production batches, or hazard classifications. Visit our category “Square H...
Drum Pumps Guide: Selection and Application
by: Jens Michael Bohn   19.10.2023
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Structure and Design of Drum Pumps Whether manual operation suffices or you and your staff require an electric drum pump depends on the operating environment and the medium stored inside the drum. Manual and electric variants differ substantially in operational complexity and suitability. Electric pumps work faster and streamline daily operations when multiple drums need emptying in short succession. Manual hand pumps, by contrast, are considerably more cost-effective and purpose-built for o...
Wash Bottles Guide: Selection and Applications
by: Jens Michael Bohn   19.10.2023
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Design and Functionality of Laboratory Wash Bottles Alongside other essential liquid-handling tools such as trigger sprayers and dropping bottles, the wash bottles in our product range are engineered for safe, contamination-free, and precise dispensing. They allow controlled delivery of various reagents, with many models featuring standardized hazard labeling compliant with Regulation (EC) No 1272/2008 (GHS). You can choose pre-printed imprints tailored to common laboratory chemicals. Most ...
Sterile Bottles Guide: Water Sampling and Laboratory Applications
by: Jens Michael Bohn   19.10.2023
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Key Features of Sterile HDPE Water Sampling Bottles While achieving sterility during manufacturing is standard practice, preserving it reliably until sampling occurs requires strict quality control. For this reason, our sterile sampling bottles are fitted with a tamper-evident screw closure. Bottles are supplied packaged inside a protective PE liner bag. Because individual bottles are not singly wrapped, the interior is sterile while the exterior remains non-sterile. Each bottle features a ...
Changes to Quantity Discounts for Glue Syringes
by: Jens Michael Bohn   25.04.2023
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Effective with the 2023 price list, previous quantity discounts on mixed purchases of the Express glue syringes have been replaced by tiered pricing per individual line item. Discounts on mixed purchases could not be automated by our ERP system. This resulted in a relatively high and unfortunately sometimes error-prone manual effort. On the customer side, this system often proved to be intransparent and cumbersome to maintain. We did not convert quantity discounts 1:1 into tiered pricing, b...
VITgrip All-Round Polypropylene Laboratory Bottles (125 ml to 2 Liters)
by: Jens Michael Bohn   09.09.2022
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VITgrip – The All-Round Laboratory Bottle The VITgrip™ laboratory bottle by VITLAB is a versatile polypropylene container designed for storage, sampling, and liquid handling in laboratory environments. Key engineering features include an ergonomic grip area, dual-sided volume graduation with ± 5 % accuracy, and an integrated sealing geometry designed to prevent leakage. Ergonomic Handling The slender, contoured waist significantly improves handling compared to conventional cylindrical bott...
Why Plastic Is Sometimes Better Than No Plastic
by: Tom van Thiel   16.03.2022
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Over the last few decades, environmental and climate protection has become an omnipresent term, almost a motto. Companies and products advertise with eco-friendly slogans and increasingly provide various certificates intended to show how important environmental protection is to them. Today it is no longer just corporations and businesses that are directly affected by these questions: consumers, too, are reminded of environmental protection in almost every part of daily life. Google, for examp...
The 10 Most Popular Laboratory Professions at a Glance
by: Jens Michael Bohn   19.10.2020
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Hydrofluoric acid is nasty stuff. It penetrates tissue and can reach the bone without the victim noticing anything or the skin showing visible damage. When this happened in an episode of the Viennese crime series “Tatort”, people online discussed the dangers of this chemical at length. Contact with an area the size of a palm is usually fatal. Besides its corrosive effect, hydrofluoric acid blocks important enzymes in the body and causes circulatory problems – up to and including cardiac ar...
PP Graduated Cylinders (50 to 2,000 ml)
by: Jens Michael Bohn   28.02.2020
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A graduated cylinder is a tall, vertical vessel featuring a pouring spout, a stable base, and a calibrated scale designed for precise liquid volume measurement. They are manufactured in both tall and low-form designs, conforming to the framework standards of DIN EN ISO 4788 (Laboratory glassware – Graduated measuring cylinders and mixing cylinders). Graduated cylinders are fabricated from either borosilicate glass or high-performance polymers (PP, PFA, or PMP). Common capacities range from...
Pressure Sprayers for Food Production
by: Jens Michael Bohn   22.10.2019
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This pressure pump sprayer is one of the few – if not the only one – certified for food contact use in accordance with EC 1935/2004. It is the ideal tool when you regularly need to distribute larger volumes evenly, achieving fine and reliable atomization with minimal effort. This pressure sprayer from the Food & Kitchen product line has a maximum capacity of 1.2 liters and is approved for direct contact with foodstuffs, including the application of *oils, *fats (phase), bakery glazes and re...
Erlenmeyer Flasks from 50 to 1,000 ml Made of Highly Transparent PP
by: Jens Michael Bohn   13.02.2019
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They are ideally suited for the storage and cultivation of cell cultures. The use of these plastic Erlenmeyer flasks is particularly advantageous when working with shaking incubators, providing significantly higher shatter resistance (virtually unbreakable) compared to glass. These Erlenmeyer flasks can be sealed reliably using the included screw cap, making them very practical for storage as well. Printed with a blue graduation scale of varying graduations; the larger the nominal volume, t...
New Design for Kautex Screw Caps
by: Jens Michael Bohn   10.04.2018
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For decades, the standard screw cap featuring a hollow-bead seal served as the benchmark closure for laboratory bottles: robust, reliable, and practical in daily handling. This classic design is now being superseded by a refined cap variant featuring an integrated conical seal. Key advantages of the updated closure design: Ergonomics: Smoother thread engagement and improved gripping ribs ensure reliable handling, even when wearing protective laboratory gloves. Security: The sealing...
Highly Transparent Narrow-Neck PET Bottles with Graduation
by: Jens Michael Bohn   01.02.2018
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A new series in our laboratory bottle range: Octagonal PET bottles in 4 different sizes: 125, 250, 500, and 1,000 ml. Highly suitable as media bottles for laboratory use and for many other applications in the chemical-technical sector. Due to their high, glass-like transparency, the contents remain clearly visible. Being virtually unbreakable, these bottles serve as an excellent alternative to glass bottles. The low tare weight and octagonal cross-section ensure easy, secure handling. The bo...
Brown Wide-Mouth LDPE Bottles with Light Protection
by: Jens Michael Bohn   04.12.2017
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New: Brown wide-mouth bottles made of LDPE from 100 to 1,000 ml For filling, storing, and transporting light-sensitive liquids, pastes, powders, granulates, etc. These brown-tinted wide-mouth bottles are robust containers suitable for an expanded range of applications because they are largely light-tight, making them ideal for storing UV-sensitive substances. They are well suited for liquids, pasty media, and granulates, as the wide neck allows for easy filling and clean...
Dual-Chamber Dosing Bottle with 250 ml Capacity
by: Jens Michael Bohn   27.04.2017
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We have expanded our selection of practical dosing bottles: A compact version with a 250 ml capacity is now available. The operating principle is identical to that of our larger formats: The container consists of two chambers – a main reservoir holding the liquid and an integrated dispensing chamber into which the desired dose is transferred by squeezing the main body. The measured quantity can then be decanted cleanly and precisely. Between applications, the bottle remains reliably sealed ...
Disposable Dosing Syringes: Expanded Range from 1 to 20 ml
by: Jens Michael Bohn   23.11.2016
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We have expanded our range of disposable dosing syringes and now offer a comprehensive selection from 1 to 20 ml. Our syringes meet high quality standards, ensuring precise fluid dispensing. With the 20 ml disposable syringe, even larger liquid volumes can be accurately dosed and dispensed. The 1 ml syringe features fine scale increments of 0.01 ml to ensure high dosing accuracy. In addition, our product line includes a 40 mm blunt cannula. This dispensing needle allows liquids to be drawn ...
CurTec Wide-Neck Drums (3.6 to 68 Liters)
by: Jens Michael Bohn   20.11.2016
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We have expanded our selection of larger plastic containers to meet the growing demands of our customers. Our plastic drums with screw lids are the premier choice when seeking packaging that fulfills the most rigorous standards. These wide-neck drums are exceptionally versatile and find use across numerous sectors, including pharmaceuticals, high-purity specialty chemicals, and food ingredients or flavorings. Certified with a UN approval for hazardous solids and fully compliant with food-con...
Printed Safety Wash Bottles with Hazard Symbols
by: Jens Michael Bohn   24.10.2016
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This time, our product range expansion focuses on laboratory supplies. In our newest category, VITsafe safety wash bottles with print, you will find wash bottles printed in accordance with current GHS guidelines for common laboratory chemicals. The most prominent and significant advantage of these bottles is the so-called Vent-Cap. A valve integrated into the screw cap allows static overpressure to escape, effectively preventing dripping that could otherwise be triggered by temperature fluct...
Product Finder for Plastic Containers and Bottles
by: Jens Michael Bohn   19.10.2016
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Our interactive product finder helps you quickly and easily locate the ideal plastic containers, bottles, and jars to match your specific operational requirements. By answering the guided questions on the left side, you can narrow down your search step by step. Matching product solutions appear on the right side in real time. Refine or broaden your search criteria flexibly: filter by specific capacity, neck geometry, base material, or select sterile packaging options for controlled laborato...
Blue Open-Top HDPE Drums (30 and 60 Liters)
by: Jens Michael Bohn   19.10.2016
To align our product portfolio with growing industrial requirements, we have expanded our selection of large-volume containers. In our category “Open-Top HDPE Drums”, we now offer two standard sizes with 30-liter and 60-liter capacities. These heavy-duty drums are manufactured from blue-pigmented HDPE and feature a black lid secured by a galvanized steel clamping ring. Two ergonomic drop handles on the sides ensure secure, balanced manual handling even when filled to capacity. The containe...
PP Measuring Scoops from 100 to 1,000 ml
by: Jens Michael Bohn   11.10.2016
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In our “Measuring and Dispensing” section, we have expanded our product range to include polypropylene measuring scoops. These measuring scoops are initially available in volumes from 100 ml to 1 liter (larger sizes are available on request, please feel free to inquire). Manufactured from white-pigmented polypropylene (PP), these scoops are well suited for measured dosing and transferring of powders, granulates, or other bulk solids into containers with wider openings, such as our wide-mout...
High-Quality 1-Liter Pump Pressure Sprayer
by: Jens Michael Bohn   05.10.2016
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Our latest addition for applications requiring regular, high-volume fine atomization and surface application of liquids: Depending on the area of application and the fluid dispensed, these pressure sprayers are manufactured from specialized materials with tailored sealing systems. The container is predominantly made of polypropylene (PP), offering broad chemical resistance, while durable polyamide (PA) is utilized for more aggressive media. The pump assembly and spray head feature either hi...
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