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High purity, seamless filters with a characteristic thimble shape. Applications include analysis of fats, oils, grease, pesticides, pollutants, other organics and additives in plastics and rubber materials.

• ◆ Pure PTFE fibers are sintered to improve handling characteristics and to minimize fiber slough-off for minimal downstream contamination.
• ◆ Hydrophobic.
• ◆ Porosity: High air permeability with minimal pressure drop.
• ◆ Operating Temperature Range: -120~260°C.
• ◆ Autoclavable.

• ◆ Made of dense borosilicate glass fiber.
• ◆ Highly resistant to chemical attack, biologically inert.
• ◆ Easily sterilized: Can be baked or autoclaved.
• ◆ High temperature extractions up to 500°C (non-binder type).
• ◆ Store indefinitely: Unaffected by humidity.

• ◆ 100% alpha cotton linter cellulose.
• ◆ Stable from pH 0 to 12.
• ◆ Thermostable up to 120°C.
• ◆ Wide selection – seven types.
• ◆ Ash Content: 0.1%.

• ◆ 100% cotton linter cellulose.
• ◆ Ash Content: 0.01% (Except No.4A 0.025%).
• ◆ Acid washed: Double acid washed in hydrochloric then hydrofluoric acid (No. 3, 5A, 5B, 5C, 6), then rinsed with ultrapure water to neutralize. No.4A is further treated with nitric acid before washing.

• ◆ Made from Mixed Esters of Cellulose (MCE) or Cellulose Acetate (CA): MCE is a mixture of nitrocellulose and other cellulose esters.
• ◆ Available with grid lines: Contrasting grid lines facilitate counting colonies on the filter surface and are tested to assure freedom from grid line inhibition. 3.1 mm squares represent 1/100 of the filtration area of a 47 mm diameter filter (9.6 cm2).
• ◆ Convenient packaging: Membranes are available individually wrapped for optimum sterility and also in 10-packs.
• ◆ Specially tested for microbiology: All 0.45 μm white gridded membranes are tested for Coliform, Fecal Streptococci and Serratia marcescens. All 0.65 μm white gridded membranes are tested for complete retention and optimal recovery of Fecal Coliform and Saccharomyces cerevisieae. Black and Green membranes are tested for optimal recovery of yeast and total bacteria. All membranes are also tested for uniform wetting, freedom from grid line inhibition and optimal color reactions on appropriate test media.
• ◆ Membrane certification for individual lot numbers is available on request.

• ◆ Minimum sample hold-up: Unit housings are specifically designed to maximize sample recovery.
• ◆ High purity: Non-pigmented housing and integral filter sealing assure that filtrates will not be adulterated due to pigment, dye, or adhesives leaching into the filtrate.
• ◆ Convenient: Each unit is clearly marked with an identifying code to denote pore size, membrane material and housing polymer.
• ◆ Sterile: Units can be purchased presterilzed and individually packaged, or nonsterile in bulk pack.
• ◆ All polypropylene can be autoclaved but acrylic can not be autoclaved.

• ◆ Made of PET film and odor-free.
• ◆ Good chemical resistance and minimum storage loss rate.
• ◆ High tensile strength, can be used repeatedly.

• ◆ Made of DuPont Tedlar® PVF film.
• ◆ Chemically inert will not react with most chemicals minimizes sample loss.
• ◆ Low permeability to assure sample purity.
• ◆ Naturally flexible and with good tensile strength.
• ◆ Polypropylene valve with unique all-in-one septum and rubber gasket, features 4mm and 6mm OD on/off stem suitable for tubing connections.
• ◆ Bag with grommet for easy transportation and storage.

• ◆ Made of polyvinylidene fluoride (PVDF).
• ◆ IS tough, durable, and chemically inert to a wide range of compounds.
• ◆ Bags have heat sealed, leak-proof seams and can be used to collect both liquid and air samples..
• ◆ For a wide temperature range (98-225 °F).

• ◆ Made of PET film and odor-free.
• ◆ Suitable for Triangle Odor Bag Method（NIEA A201.14A）.
• ◆ Bag marked with No.1 to 3 is convenient for operation.

• ◆ Composed of five different types of odors.
• ◆ Same as T&T olfactometer (medical standard olfactory test).
• ◆ Can be used to measure olfactory power level or olfactory training.

• ◆ Capacity: 50 ml.
• ◆ Odorless liquid paraffin.

• ◆ Quantity: 500.
• ◆ L: 14cm、W: 0.7cm.

• ◆ Material: Glass
• ◆ Available in a variety of capacities.
• ◆ 300mL、100mL、10mL、1mL(Airtight)，100uL(Airtight).

• ◆ Concentration：1000 μg/mL、10000 μg/mL.
• ◆ Capacity：125 mL、500 mL.Project：Al、Sb、As、Ba、Be、B、Cd、Ca、Cr、Co、Cu、Fe、Pb、Li、Mg、Mn、Hg、Mo、Ni、K、Se、Ag、Na、Sr、Tl、Sn、Ti、V、Zn、P、Si、S、Y*、Sc*.（*Not included in the scope of ISO Guide 34.）

• ◆ Customizable standards: 22VOCs and 63VOCs, using NSI customized standards, can save at least 50% of the cost of preparing a single solution into a multi-component solution, and can be improved:
• ◇ Accuracy traceability.
• ◇ Acid quality.
• ◇ Container cleanliness.
• ◇ The quality of the reference solution.
• ◇ Prevent and ensure the loss of solution.

• ◆ Air Type
• ◇ Air component standard gas
• ◇ Medical gas
• ◇ Petroleum refining standard gas
• ◇ Special hydrogen mixed standard gas


• ◆ Product Applications
• ◇ Perimeter, flue analyzer calibration
• ◇ Automobile and motorcycle emission detector calibration
• ◇ Various analyzers and gas chromatograph calibration
• ◇ Gong'an Gas Leakage Detector Correction

• ◆ Materials identified as EPA Standard.
• ◆ Head resistance up to 75 degrees.
• ◆ The most common types are PETG and PVC liners, select the suitable material to save your cost.
• ◆ Good quality and cut perfectly.
• ◆ Custom length available upon request.
• ◆ Special fused liners prevent loss of the sample upon retrieval.

• ◆ High and low temperature resistance：-70°C~260°C.
• ◆ Good non-stickiness, no residual material on the pipe wall.
• ◆ Electrical reliability, high insulation, and a power factor of about 2.0.
• ◆ Corrosion resistance, low water absorption.
• ◆ Non-combustible, oxygen index is greater than 95%.
• ◆ Non-toxic, weather resistant.

• ◆ High and low temperature resistance.
• ◆ ood non-stickiness, no residual material on the pipe wall.
• ◆ Electrical reliability, high insulation.
• ◆ Corrosion resistance.
• ◆ Low water absorption。
• ◆ Non-toxic.

• ◆ water purity to 18.2 MΩ-cm.
• ◆ Delivers 38 liters of water per minute.
• ◆ Combined with various special technologies, it can maintain the purity of ultrapure water.
• ◆ With disinfection function, the total number of bacteria can be kept below 5CFU/ml.
• ◆ Ultrapure water can be supplied to multiple laboratories distributed over several floors.
• ◆ A leak monitoring system can be built to keep the supply of ultrapure water uninterrupted.
• ◆ The price is very favorable and it is very cost effective.