Laboratory test strip

Laboratory test strips are paper strips impregnated with chemical reagents that produce a color reaction upon contact with a sample, enabling rapid detection of specific components in liquids or gases. Their function is to provide qualitative or semi-quantitative analysis of indicators such as pH, heavy metals, and residues in on-site or laboratory settings. They are applied in fields such as water quality monitoring, food safety, and industrial process control.
Selection
When selecting test strips, it is essential to confirm that the detection target matches the measurement range of the strips. Check the color stability and reaction time, verify the product's shelf life and storage conditions, compare the tolerance to interfering substances across different brands, consider the convenience of interpreting the color chart, and evaluate the cost per test as well as the requirements for batch testing.

Terms

Standards

Instruments

The device can precisely control the film thickness of the ink layer of the color strip, and the ink injection amount is 0.0012g, which is used for ink contrast and color concentration detection.

$ 173.00

The mechanical compression spring device is not easy to damage, the accuracy is up to 0.5HW, the film thickness 0.4-6 mm workpiece can be detected, and various Hardness values such as Brinell Rockwell can be obtained through the conversion table.

$ 477.00

The minimum measurable inner diaMeter is 10mm, the maximum sample thickness is 6mm, and the imported special steel crimp and high-strength pointer components are used. It has good Stability and portability and supports Hardness value conversion.

$ 1017.00

The ElectRode is a composite design with a 60mL reference filler and calibrating solution combined with an ionic strength modifier for accurate measurement of Cu Ion concentration and comes with a polishing strip for easy maintenance.

$ 309.00

ElectRode composite structure, equipped with 60mL reference filling solution and calibrating solution, built-in ionic strength modifier, support accurate lead Ion concentration measurement, matching polishing strip for easy maintenance.

$ 309.00

Adopt microcomputer temperature control technology, temperature control accuracy +/- 1% ℃, Vacuum Level < 133pa, equipped with tempered Glass door and silicone sealing strip, support inert gas filling, suitable for rapid drying of complex ingredients.

$ 3462.00

Microcomputer temperature control technology, Temperature Fluctuation +/- 1%, Vacuum Level < 133Pa, equipped with high temperature silicone rubber sealing strip and tempered Glass door, support inert gas filling, suitable for heat sensitive material drying.

$ 1203.00

Adopt magnetic Induction principle to measure 0-1250μm thickness, equipped with line Probe measurement groove and narrow area, support single point and two point calibrating, with automatic matrix recognition and undervoltage prompt function.

$ 186.00

Vertical double air duct vertical hot air circulation design to ensure Temperature uniformity +/- 1 ℃, turbine centrifugal fan blades with bust system, adjustable shelf spacing, equipped with double-decked tempered Glass observation window and high temperature sealing strip.

$ 1775.00

Irreversible Color change for long-term temperature recording; Resistant to oil, water and steam; Temperature accuracy is +/- 1 ° C below 100 ° C and +/- 1.5 ° C from 100 ° C to 154 ° C; Self-adhesive design for easy use and storage.

$ 93.00

The equipment can perform a 45 ° bending test, support 0.5~ 1.0mm plate thickness, equipped with Travel ≥ 10mm flattening mechanism, suitable for accurate testing of coating flexibility.

$ 641.00

Imported special steel pressure needle, Hardness and long life, range 0-20HW, can directly read the Hardness value, suitable for on-site rapid testing, Stability and portability.

$ 1017.00

Pure white paper surface sealed, size 194x286mm, ASTM standard, support hiding power measurement and levelling sag test, matching Applicator Rod can obtain uniform coating results.

$ 307.00

The device can precisely control the thickness of the ink layer, the minimum Basis Weight unit is 0.0012CC, and the compact size is φ 20 * 180mm, which is convenient for inks comparison and color concentration detection.

$ 396.00

Using magnetic Induction and eddy Current dual principle, Measurement range 0~ 1250μm, Probe with line can measure grooves and complex positions, automatically identify iron and non-iron substrates, with single point and two point Adjustment.

$ 196.00

Articles

The use of gravure proofing machines in the comprehensive evaluation of gravure ink printability and drying performance.
This article explores how a gravure proofing press can be used to comprehensively evaluate the printability and drying properties of gravure inks. The experiment tested the dot sharpness, transfer rate, and leveling properties of different inks using standard equipment, while recording drying times through the filter paper method and infrared temperature measurement.
The friction color fastness tester measures the amount of color transfer under dry and wet abrasion conditions for ink.
This article introduces a method for testing the amount of ink color transfer using a friction colorfastness tester, simulating both dry and wet rubbing conditions. Dry rubbing involves rubbing the ink surface with a dry white cotton cloth, while wet rubbing uses a white cotton cloth moistened with water.
Application of High-Temperature Viscometer in Testing the Melt Viscosity Characteristics of Hot Melt Ink
This article introduces a method for testing the melt viscosity of hot-melt ink using a high-temperature viscometer. The test employs a rotational viscometer to measure the viscosity of three ink samples at different temperatures.
Determination of Thermal Decomposition Temperature and Inorganic Filler Content in Ink by Thermogravimetric Analyzer
This article introduces how to determine the thermal decomposition temperature and inorganic filler content of ink using a thermogravimetric analyzer. During the test, a small amount of ink sample is heated in a nitrogen or air atmosphere, and the mass change curve is recorded.
Impact of the Fixture Design of a Drop Hammer Impact Tester on the Plastic Impact Strength Results
This article primarily discusses the impact of the fixture design of a drop-weight impact testing machine on the results of plastic impact strength tests. The geometric parameters of the fixture, clamping method, and contact surface material can alter the stress state and energy transfer of the specimen, thereby affecting the accuracy of the test data.
Application of High-Temperature Universal Testing Machine in the Study of Hot Modulus of Rupture of Refractory Materials
This article introduces the application of a high-temperature universal testing machine in measuring the hot modulus of rupture of refractory materials. It explains the working principle, testing procedure, and key parameters of the testing machine, such as the effects of heating rate, holding time, and loading rate.
Application of Tensile Testing Machine in 180-Degree Peel Strength Test for Packaging Tape
This article introduces how a tensile testing machine is used to test the 180-degree peel strength of packaging tape.
Application of High-Frequency Fatigue Testing Machine in Infinite Life Testing of Valve Springs
This article discusses the application of high-frequency fatigue testing machines in the infinite life testing of valve springs. The test simulates the long-term working stress of the spring through high-frequency cyclic loading, with parameters such as preload, amplitude, and cycle count set according to international standards.
Resistance Tester Selection: Measurement Methods for Low Resistance and High Resistance
This article introduces the selection method of resistance testers. Based on the range of the measured resistance, low resistance requires the four-wire Kelvin method, using constant current and voltage measurement to eliminate the influence of contact resistance; high resistance uses the voltage method to measure tiny currents, with attention to shielding and leakage prevention.
Transverse Burst Strength Tester for the Evaluation of Impact Resistance of Corrugated Cardboard
This article explains how a lateral bursting strength tester is used to evaluate the impact resistance of corrugated cardboard. It measures the energy absorbed by the cardboard at the point of rupture using the pendulum impact principle, requiring the preparation of specimens according to standards and the control of environmental conditions during testing.
Surface Absorbency Tester for Predicting Drying Speed of Printing Ink on Coated Paper
This article explores how the surface absorbency tester predicts the drying speed of ink on coated paper. Traditional methods rely on actual printing tests, which are time-consuming and difficult to quantify.
Extended Application of Paper Water Absorption Tester in the Dispersibility Evaluation of Tissue Paper
This article explores how to extend the application of an instrument originally used for testing the water absorption capacity of paper to evaluate the dispersibility of tissue paper.
Standard Procedure for Printability Tester in Evaluating Ink Transfer Performance
This article introduces the standard procedure for evaluating ink transfer performance using a printability tester. The transfer performance of ink directly affects print quality, and standardized operations can enhance the reliability of test results.
Application of Three-Chamber High and Low Temperature Test Chambers in Rapid Temperature Cycling for Electronic Products
The three-chamber high-low temperature test chamber is used for reliability testing of electronic products, enabling rapid temperature transitions through independent high temperature, low temperature, and test zones. Compared to traditional single-chamber equipment, it reduces temperature change time and enhances testing efficiency.
Gelation Time Tester in the Testing of Thermosetting Resin Curing Process
The gel time tester is used to measure the transition time of thermosetting resins from a liquid state to a gel state, which is crucial for controlling the curing process and product quality.