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Sample Preparation It is essential to obtain accurate results. VWR offers a large choice of products from mixing and grinding to automatic digestion and distillation systems. Digestions units used for the determination of nitrogen COD and trace me...

Kjeldahl Analysis Kjeldahl nitrogen determinations are performed on a variety of food substances. The Kjeldahl method may be broken down into three main steps: digestion distillation and titration. 1. Digestion: is accomplished by boiling a homoge...

Kjeldahl Kjeldahl nitrogen determinations are performed on a variety of food substances. The Kjeldahl method may be broken down into three main steps: digestion distillation and titration. 1. Digestion: is accomplished by boiling a homogeneous sam...

Standards VWR offers a series of conductivity standards and potassium chloride solutions for calibration of your meters. Product selection Standards

Standard Products Through VWR part of Avantor choose from over 100 standard products that have been designed to solve many common bioprocess applications. All products featured below are available for prompt delivery. Not seeing what you're lookin...

ICP Standards VWR offers an extensive range of ICP standards. Customers can benefit from having two independently manufactured standards from one supplier. Standards are traceable to NIST. Product selection BDH Prolabo ICP Standards ARISTAR high p...

Toxic and corrosive materials Always treat all chemicals as potential poisons and be aware of properties/precautions before use. Avoid direct contact with any chemical and never breathe in solvent vapours. Examples of chemicals giving off vapours ...

ICP/MS Standards VWR offer an extensive range of standards for this demanding technique from several sources. Product selection BDH Prolabo ICP/MS Standards ARISTAR offers a full range of 1000 and 10000 ppm ICP-MS standards in 100 and 500 ml packs...

AAS Standards & Reagents A widely used technique for which VWR offers an extensive range of standards. Product selection AAS Reagents BDH Prolabo AVS TITRINORM is a wide range of elemental standards for AAS...

Standard Pipe Thread Fittings American Standard Taper Pipe Threads (NPT) Nominal size (inside diameter) Actual OD Threads per inch Length of engagement (tightened by hand) Hand tight turns Wrench makeup turns Length of effective thread 1/16 0.3125...

Process Peristaltic Pumps Provide Robust Effective Solutions For Demanding Mining Applications Gregg E. Johnson Masterflex Barrington IL USA. With Masterflex ® peristaltic pumps a well-balanced range of capabilities and flexibility combines with o...

How to load tubing into Masterflex L/S standard pump heads To view this video please enable JavaScript and consider upgrading to a web browser that supports HTML5 video Video Summary Video demonstrating how to propely load Silicone and Tygon Lab t...

Chemical Safety in the Laboratory When working with any chemicals especially hazardous ones safety is paramount. The appropriate personal protection equipment is of course mandatory but there are other options you might want to consider to help yo...

Regulatory Agencies and Approvals ASCII: American Standard Code for Information Interchange method of encoding characters into 7 or 8 binary bits (typically 7 bits plus an 8th bit for parity). ANSI: The American National Standards Institute is a p...

Reference Materials Key drivers in all industries include the increased capability of instrumental techniques into the ppb ppt ranges and indeed the requirement for results to be verified and traceable. Using prepared standards and reference mater...

Microbiological “Gold standards” VS Flow cytometry method in Food & Beverage industry Webinar Tuesday 25th May 2021 16:00 to 17:00 CEST (Berlin Paris Madrid) Replay Email Alerts Free Registration Chat Area Certificate of attendance Flow cytometry ...