W301 Water Vapor permeation tester tests the water vapor transmission rate (WVTR) of packaging material.
This instrument is widely used in food industry, pharmaceutical industry, cosmetics flexible packaging materials industry(plastic film, barrier materials, sheets, metal aluminum, PVC,PVC sheets), college, university and quality institution for their water vapor transmission rate(WVTR) test and quality control.
It carries the standards of GB 1037-1988 ,GB/T 16928-1997, ASTM E96-00e1 ,ASTM D1653-03,TAPPI T464,ISO2528.
Working principle
W301 Water Vapor Permeation Tester was designed with the principle of weighting method to use weight reduction method to test the water transmittance rate (WVTR) of plastic films. Namely in the regulated temperature, relative humidity conditions, the sample two sides keep the vapor different pressure, measuring the vapor volume passed through, figure out the WVTR value. Unit is g/ m224h.
Specifications
Measurement range0.02~10000 g/ m224h
Measurement accuracy: 0.001 g/ m224h
Temp. range1545
Temp. accuracy0.1
Humidity range: 0~20%RH dry method 10~90%RH (dual-airflow humidity method, selection
Humidity accuracy: 2%RH
Sample thickness2mm
Sample no1piece
Sample dia.:80mm, transmission area 50.24cm2, (no stipulate for area in international)
Power supply: AC220V/50Hz
Features
1, Automatic test, use friendly,
2, Instrument with configuration of 240,000 true color touch screen to work independently;
3, High-precision sensors with over-range protection, continuous data collection, accurate and reliable data;
4, Automatic control temperature, low requirements for environment;
5, Software displays the status of each curve ,all the test parameters on the real time showing;
6, Work independently without computer;
7. Test precision is the same with infrared method and coulometry method;
8. Superior components ,multi-level security protection design,
9. Calibration with two method of weights and standard film;
10. CE, UL, FCC certifications.
11. Versatile operation language support.
12. Test chambers can expand to ten or even more.
Service :2 years coverage
Speedy reply, 12hrs response to customer questions
Software free update
Minor maintenance ---parts ship within 24 hrs
Major maintenance---Technical will be sent within 15 days
Free inhouse training for customer operator.
The GBH electronic tensile tester is primarily used for packaging industries and is considered the best value for food, pharmaceutical and cosmetic industries.
Specifications:
Force measurement range: 0-500n, 1500% elongation
Force measurement resolution: 1/ 100, 000 of the full range of the sensor
Test speed: 0-500mm/min (stepless speed regulation)
Displacement precision: within 0.5% of the indicating value.
Effective test travel: 800mm
Power supply: AC220V /50hz
Dimension: 600 (l)mm 600 (w) mm 300 (h) mm
Weight: 70kg.
Instrument structure:
The structure of the heat-sealing tester is composed of 4 parts: pneumatic drive system, heat-sealing equipment, temperature adjustment system and time adjustment system.
Pneumatic drive system:
It includes pressure gauge, guide stick, cylinder, pneumatic valve, pressure regulating handle and so on. You can pull the pressure-regulating handle outward, rotate to the right side to adjust the heat sealing pressure to a high value, and rotate to the left side to reduce it. After setting the pressure, please press the handle to the side of mainframe to lock the air pressure.
Heating-seal device
It is composed of the upper and lower heat-sealing sticks, of which the upper one is connected with a cylinder. There is an insulating plate in the upper part, which can prevent heat transmit to the cylinder. The heat-sealing stick is made of aluminum, and the center is heater. There is a silica gel plate in the upper part of the lower heat-sealing stick, which can mitigate pressure impact during heat sealing. Temperature measurement system was installed at the back of the heat-sealing stick.
Temperature adjustment system:
The upper temperature controller controls the temperature of upper heat-sealing stick, and the rear temperature controller controls the temperature of lower heat-sealing stick. The temperature can be set at will through adjusting the button on the dial plate.
Time adjustment system:
Time adjustment system: The heat-sealing time can be set at will through adjusting the button on dial plate. The setting scope of time is 0.01s to 999.9h. Press the foot switch under the manual state, and the heat-sealing stick will be pressed together. Under the automatic state, the press-fitting time of upper and lower heat sealing sticks are controlled by a timer automatically, it can automatically recover later. The unit of timer is 0.1 second in general. There is time adjusting button on the panel of the timer, and the heat-sealing time can be adjusted at will.
Specifications
Power : AC220V 50HZ ;
Compressed Air : 8kg/cm2;
Heat sealing plane : 300mm×10mm slick (With silicon pad in lower seal stick);
Heat sealing temperature : room temperature 20~300°C (Precision 1°C);
Heat sealing time : 0.01s~99.99h;
Heat-sealing pressure : 0~0.8Mp.
Dimension: 700 (L) mm×400 (W) mm×540 (H) mm
Weight: Desktop 30Kg.
GBR type hot tack tester is applicable in hot tack property test for flexible and semi-rigid packaging materials or pipe materials.
The hot seal temperature, pressure and time can be set by users easily.
Temperature control system of digital P.I.D., with high accuracy.
Parallel heating surface, even temperature, good sealing efficiency.
International quality pressure control devices of higher accuracy.
Optional load cell range, easy to change and easy to broaden the test scope.
Perform many tests in different width by changing the specimen fixture quickly.
Test controlled by micro-computer, led displays, with professional software.
Test principle
Clamp the two ends of the specimen by the static jaw and dynamic jaw, the driver moves the dynamic jaw, which produces relative movement. Tester gets electronic signal from the load cell after the specimen suffers the force. After analysis, get the data of hot tack, peel, and tension. It can print out the report if needed.
Note: hot tack tester tests the strength of a specimen at a specified time interval (tack time) after completion of heat-sealing in melting state but prior to the temperature cooling down to room temperature.
Specifications
Temperature range: room temperature~250ºc
Temp. Control accuracy: ±0.2ºc
Dwell pressure: 0.04mpa~0.8mpa
Hot sticking time: 0~99s
Accuracy : ±1% of reading force
Measuring range : 0-300 n
Width of specimen : 15mm or 25 mm or 25.4 mm (optional)
Length of specimen : 200 mm
Dimension : 600mm (l) ×300mm (b) ×220mm (h)
Power : AC 220v 50hz/60hz
Net weight: 62kg
Configuration
Standard: mainframe, footswitch, hot tack clamp, calibration frame
Optional: software, communication cable, non-standard seal jaws, test board, welding cloak, non-standard jaws, sample cutter, non-standard specimen
Gm-1 coefficient of friction tester mainly measure the smoothness property of opp, pet, nilon, cpp, cpe and other plastic materials and sheets .By testing the friction efficient number judges the smoothness, uniformity of film, efficiently to prevent its smoothness level avoiding the quality defects.
Its used in packaging field, film factory, printing industry, paper factory, packaging test institutions .It carries the standard of gb 10006 -1988, astm d 1894 -1990 , tappi 816 wd-00, iso 8295 -1995.
Working principle
Cut the sample into two pieces, one is placed in the working stable as well as clamping by the clamper, another encase the slider, then fix the slider on the hole of the sensor make the sample move under the condition of slider gaining the force, that is to say the two side of test sample makes relative moving .The sensor measured force signal be amplified by icl7650, transferred to recorder as well as recording the dynamic and static friction coefficient.
Specifications
Sample thickness : 0.2mm
Sliding piece size : 6363mm
Sliding piece mass : 2002g
Working-table board size : 200470mm
Measuring precision :0.001
Velocity of sliding-piece movement : 10010mm/min (changeable)
Force measurement range : 0-2n (0-10 selectable)
Weight : 20kg
Power supply : AC 220v/ 50hz
Features
1. Stable performance, accurate test data;
2. Use friendly and durably;
3. Computer control, test results directly show in the window; connecting computer with professional software online show the test curve and can save the test report as well as print.
4. Import superior components, longer lift time;
5. Simple calibration method;
6. Ce, fcc certifications
7. Versatile operation language support.
Chemical formula C4H6O5
C.A.S number 004-525-33-1
Formula weight 134.09
Appearance Colourless liquid
Assay Not less than 99.8%
Density 1.25g/cm3(20C/68F)
Application Using for the different beverages:
flavored water
energy drinks
tea drinks
juice till 100%
Mechanism of efficiency of DMDC DMDC can permeate through the cell membrane, and block the metabolism through reacting with the enzymes of microorganism, then achieve the purpose of sterilization. Even in very low additive amount, DMDC can effectively kill typical spoilage bacteria in beverage, and not affect the taste, flavor and color of the beverage. Furthermore, it could be rapidly and completely hydrolyzed to carbon dioxide and methanol, which are the natural ingredients of juice.
Package Gauga: 4KG/20KG
Storage conditions In optimal storage conditions (storage temperature: 20C-30C), the storage period is one year
Commodity:Sodium persulfate
Molecular Formula : Na2S2O8
Molecular weight : 238.13
Description
Sodium persulfate is a white,crystalline,odourless salt.It is used as initiator for the Polymerization of monomers and as a strong oxidizing agent in many applications.It has the particular advantage of being almost non - hygroscopic,of having a particularly good storage stability as a result of its extremely high purity and of being easy and safe to handle.
Transportation
Road/Rail transport : GGVS,GGVE,ADR,RID/CLASS 5.1 Sea transport : GGV Sea/IMDG code : CLASS 5.1 Page 5185,UN no.1505
Water hazards class 1(slight water hazard)
All information is given in good faith,but without warranty,since the conditions of use are outside our control. Verification by the user is recommended.Freedom from patent restriction cannot be assumed.
Package
(1) In 25kgs net multiple paper bags with one PE bag inner
(2) In 25kgs net PE bags
(3) In 25kgs net woven bags with two PE bags inner
(4) In 1000kgs net big woven bags with one PE bag inner
The above package is also with a pallet 1000kgs each.
Storage
NPS(SPS) is not combustible but assists combustion materials due to release of oxygen.Provided it is stored under appropriate condition.It must be stored dry in closed containers and protected from direct sunlight,heat and humidity.Impurities such as dirt,rust or traces of metal and reductants may cause catalytic decomposition.The product as supplied or in solution needs to be handled with appropriate care.The eye,skin and clothes must be protected when working with NPS(SPS) as damp powder or aqueous solution has a bleaching and slightly corroding effect.
Application
Polymerization : Initiator for the emulsion or solution Polymerization of acrylic monomers,vinyl acetate,vinyl chloride etc.and for the emulsion co-polymerization of styrene,acrylonitrile,butadiene etc.
Metal treatment : Treatment of metal surfaces(e.g. in the manufacture of semiconductors;
cleaning and etching of printed circuits),activation of copper and aluminium surfaces.
Cosmetics : Essential component of bleaching formulations.
Paper : modification of starch,repulping of wet - strength paper.
Textile : Desizing agent and bleach activator - particularly for cold bleaching.(i.e.bleaching of Jeans).
Others :
- Chemical synthesis
- Water treatment(decontamination)
- Waste gas treatment,oxidative degradation of harmful substances(e.g.Hg)
- Disinfectant
ITEMS SPECIFICATIONS
Appearance white crystalline salt
Assay 99.0% w/w min
Active oxygen 6.65% w/w min
Chloride and chlorate(as CL) 0.005% w/w max
Ammonia (NH4) 0.05% w/w max
Manganese(Mn) 0.0001% w/w max
Iron(Fe) 0.001% w/w max
Heavy metals(as Pb) 0.001% w/w max
Moisture 0.05% w/w max
Decomposition of the product as supplied at above 65C
Recommended storage temperature Normal Temperature
Storage stability as from date of delivery 12 months
Paraformaldehyde is a polymer of formaldehyde with the chemical formula (CH2O)n, where n is typically in the range of 8 to 100. It is a white, crystalline solid composed of small, polymeric formaldehyde units. Paraformaldehyde is commonly used as a solid form of formaldehyde, and it has various applications in different fields.
Form and Structure:
Paraformaldehyde is a low-molecular-weight polymer of formaldehyde, consisting of repeating CH2O units.
It is often produced in the form of white, crystalline granules or as a powder.
Uses:
Fixative in Histology: Paraformaldehyde is commonly used in histology and pathology laboratories as a fixative for preserving biological specimens for microscopic analysis.
Disinfectant: It has disinfectant properties and can be used for sterilizing equipment.
Crosslinking Agent: Paraformaldehyde is used in the crosslinking of proteins, peptides, and nucleic acids in molecular biology applications.
Chemical Synthesis: It serves as a source of formaldehyde in various chemical reactions and syntheses.
Handling and Safety:
Paraformaldehyde should be handled with care, and precautions should be taken to avoid inhalation, skin contact, or ingestion.
When paraformaldehyde is heated, it releases formaldehyde gas, which is a strong irritant. Adequate ventilation and protective equipment should be used when working with paraformaldehyde.
Dissolution:
To use paraformaldehyde as a fixative or in other applications, it is typically dissolved in water to generate a formaldehyde solution.
Storage:
Paraformaldehyde should be stored in a cool, dry place away from heat sources and incompatible materials.
