QUALITATIVE - 169 Annonces

Vendredi 11 juin 2021

Quantité : 500000PCS - Prix : 0.2USD~8000USD

Liquid Chromogenic Culture Medium Coliforms and E. coli liquid chromogenic medium Performance Characteristics of Liquid Chromogenic Culture Media 1. It is included in the "Japan Food Hygiene Guide" (2004 edition) with strong authoritative influence. 2. There are two kinds of chromogenic...

Vendredi 11 juin 2021

Quantité : 500000PCS - Prix : 0.2USD~8000USD

In microbial detection, when the sample is collected and diluted correctly, the prepared sample solution needs to select the appropriate culture medium for cultivation, so as to judge whether the sample meets the standard. The choice of culture medium means whether we can get the...

Vendredi 08 janvier 2021

Quantité : 150 sets/m - Prix : USD $1000~$30000

Drop wires are installed on the weaving loom machine to detect warp breakage. Drop Wires are manufactured in closed and open type for mechanical and electrical warp stop motion. We are engaged in offering a qualitative range of stainless steel drop pins available in different sizes...

Dimanche 03 janvier 2021

We, Unifit Metalloys Inc are a highly acclaimed Manufacturer, Trader, Suppliers, Wholesaler and Exporter of highly qualitative Stainless Steel Pipe Fittings, Alloy Steel Forged Fittings, Carbon Steel Olets and Flang etc. at highly reasonable prices. Localisation : Shop No.1, Ground Floor...

Jeudi 19 mars 2020

Qualitative filter paper property: also known as qualitative analysis filter paper. It is a kind of filter paper used in chemical laboratories to filter precipitation and suspended matter. Silicon content is higher than the quantitative filter paper, burning after a certain amount of ash...

Jeudi 12 mars 2020

Most filter paper is made of cotton fibers and is made in different ways for different purposes. Because it's made of fiber, As a result, its surface has numerous small holes through which liquid particles can pass, while larger solid particles cannot. This property allows the mixing...

Jeudi 16 janvier 2020

In general, filter paper can be divided into two types, one is qualitative, one is quantitative. Qualitative filter paper generally refers to the generation of cotton fiber on its surface after filtration, which is generally only suitable for qualitative analysis. While the quantitative...

Mardi 14 janvier 2020

Filter paper can be qualitative and quantitative. In the application of analytical chemistry, after the inorganic compound is separated by filtration to separate out the precipitate, the residue collected on the filter paper can be used to calculate the loss rate during the experiment...

Vendredi 10 janvier 2020

When selecting the filter paper, people should combine the Rf value of the separated object. For the compounds with slight differences in Rf values, slow filter paper can be used to separate the compounds clearly because using the fast filter paper will cause the inseparable weight...

Jeudi 09 janvier 2020

Hawach Scientific specialized in filtration products for more than decades years. All our filter papers are made from the imported membrane in the cleanroom. Before release to market, the products are consigned to the QC department for random inspection. In analytical chemistry, the...

Jeudi 02 janvier 2020

Choosing the right filter for your filtration will be a big help to make sure that you can get the desired results for your applications.You can select a suitable filter material and size, after you consider whether you need vacuum or gravity filtration. Since there are so many types...

Lundi 09 décembre 2019

Quantitative filter paper is used in precipitation weight analysis. Because the quantitative filter paper has been treated with hydrochloric acid and hydrofluoric acid, the ash content after burning is negligible, so it is also called ashless filter paper. The following are the specific...

Mardi 26 novembre 2019

Quantité : 2000 - Prix : 0.5-100

According to a recent eye-tracking and qualitative research study conducted by Package InSight, a partner of Clemson University's Packaging Sciences School, consumers would rather see a product through a clear folding carton than see an image of a product printed on a paperboard...

Jeudi 10 octobre 2019

According to a recent eye-tracking and qualitative research study conducted by Package InSight, a partner of Clemson University's Packaging Sciences School, consumers would rather see a product through a clear folding carton than see an image of a product printed on a paperboard carton...

Mardi 08 octobre 2019

Qualitative analysis filter paper generally has more residual ash content, which is only used for general qualitative analysis and filtration solution of precipitation or suspended matter, not for quality analysis. In terms of type and specification, qualitative analysis filter paper...

Lundi 30 septembre 2019

SPE is a kind of sample production technology which is more and more useful in which many problems related to liquid and liquid extraction could be avoided, such as the incomplete separation, non-quantitative recycle, the use of expensive and fragile glass vessels, massive organic...

Mercredi 25 septembre 2019

There are four factors that should be considered by the experimenters when selected the proper filter papers. The first factor is the hardness. The filter paper will become wet when it is used in the filtration. And so the experimenters should consider those papers which are tougher...

Jeudi 19 septembre 2019

The filter paper used in the analytical laboratory performs a strong absorption effect for liquids, which can separate the solution from the solid. The filter paper produced domestically could be divided into three types, including qualitative filter paper, and quantitative filter paper...

Mardi 17 septembre 2019

Hawach Scientific product quality in strict accordance with ISO9001: 2000 quality system certification procedures, and from now on we have exported to more than 120 countries. Overview of qualitative filter paper, analysis laboratory commonly used filter paper as a filter medium,...

Jeudi 12 septembre 2019

Hawach Scientific is the production of filter paper professional manufacturers with advanced production technology and perfect testing equipment. Quantitative filter paper is suitable for a wide range of critical gravimetric analytical filtration procedures. In the manufacturing process...

Mardi 10 septembre 2019

Qualitative filter papers are widely used for general filtration in the lab. Made of cellulose fiber, they are manufactured from high-quality cotton linters with the treatment of maximizing alpha cellulose. With the highest degree of polymerization, Alpha cellulose is recommended...

Mardi 13 août 2019

Filtration is a kind of physical changes which separate solid impurities from the liquid through porous filter media, only fluid can pass by the porous filter media. So the degree of retention determines the separation efficiency. Hawach provides various options to satisfy every laboratory...

Vendredi 09 août 2019

Filter Paper is a tool commonly found in chemical laboratories for separation of two-phase, and usually round in shape. To filter two phases so as to separate and purify matter, most of the filter paper is made of cotton fiber and is made in different ways for different purposes....

Mercredi 07 août 2019

Each analyst needs filter paper, which is a product with high consumption in the laboratory. Filter paper is commonly used in analytical laboratories as a filter medium to separate the solution from the solid. Basic introduction The paper is loose and has strong absorption performance to liquid...

Mardi 30 juillet 2019

Quantitative filter paper or qualitative filter paper, it is a question. While at the very beginning, we can distinguish from the literal meaning between quantitative and qualitative. Quantitative refers to fixed quantity, more about physical properties. Qualitative refers to fixed quality...

Vendredi 12 juillet 2019

Note on the filter paper box that when using the quantitative and qualitative analysis filter paper to filter the precipitate: 1. Generally uses natural filtration, using the filter paper body and the ability to retain solid particles to separate the liquid and solid; 2. Because the...

Mercredi 10 juillet 2019

The biggest feature of filter paper is paper with good filtration performance. At present, the filter papers produced in China mainly include quantitative analysis filter paper, qualitative analysis filter paper and chromatographic qualitative analysis filter paper. Quantitative filter...

Lundi 08 juillet 2019

Hawach Scientific is a modern enterprise contains well integration of R&D, production, sales, and after-sales services. We have a sales team for filter paper, after more than 16 years promotion, the high praise from the market for our quality and services, filter papers have various...

Vendredi 05 juillet 2019

1. Product No., for example BIO-1. 2. Pore size and flow rate, The bigger pore size, the quicker flow rate. Fast: 60-100S/100ML @ 80-120μm Medium: 100-160 S/100ML@30-50μm Slow：160-200 S/100ML @ 1-3 μm But filter paper is different from filter membrane, the pore size cannot be a certain value...

Jeudi 04 juillet 2019

Manufactured from the same raw materials as the ashless grades, the qualitative filter paper is suited for ordinary filtration when we need to determine materials by using qualitative analytical techniques in the lab, with the features of fast flow rate due to their structure. Qualitative...