E1 E2 F1 F2 M1 ASTM Standard Non-magnetic 1mg-500mg 100g 200g 500g 1kg 2kg 5kg 10kg 20kg 25kg 50kg Test Weights Set
Definition and function of weights
A calibration weight is a precisely manufactured mass block used to provide a standard mass or load during the measurement process. Its main applications include:
a. Calibration of measuring equipment: such as balances, electronic scales, etc., to ensure that the readings they display are accurate.
b. Calibration of other equipment: such as certain mechanical equipment, used to determine the load or other parameters of the machine.
c. Providing standards for scientific research: In some experiments, accurate mass is required as a reference, and weights come in handy.
Classification of calibration weights
According to different standards and uses, calibration weights can be divided into different types:
a. Classification by material: mainly including weights made of iron, stainless steel, aluminum, copper and other materials.
b. Classification by accuracy: such as E1, E2, F1, F2, etc., where E1 is the highest accuracy level.
c. Classification by shape: such as disc type, cylindrical type, rod type, etc.
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Production and manufacturing of calibration weights
The process of manufacturing calibration weights requires highly precise equipment and strict manufacturing standards. It mainly includes the following steps:
a. Material selection: ensure the purity and stability of the material.
b. Molding process: Use specific molds and processes to shape the material into the required shape.
c. Fine processing: Including grinding, polishing, etc., to ensure that the surface of the weight is smooth and achieves the required accuracy.
d. Quality inspection: Use high-precision measuring equipment, such as electronic balances, to perform quality inspection on the weights.
Maintenance and care of calibration weights
In order to ensure the long-term stability and accuracy of the weights, regular maintenance and care are required:
a. Storage conditions: Store in a moisture-proof and dust-proof place, avoid direct sunlight and high temperature.
b. Cleaning and maintenance: Use special detergents and soft cloth for regular cleaning.
c. Regular calibration: Use standard weights or other equipment to calibrate it every once in a while.
Place of Origin: Jiangsu China (Mainland)
Brand: W&J
Material: JF-1 stainless steel
Nominal Value: 1mg-20kg
Class: E1, E2, F1
Polarization: E1≤2.5μT; E2≤8μT; F1≤25μT
Susceptibility: <0.005-0.002
Density: 8.0g/cm³
Finish: polishing
Style: Cylindrical
Application: lab, chemical, medical, commercial and educational use
Nominal Value: 1mg-50kg
Material: 304 stainless steel
Color: Silver
Density: 7.9g/cm³
Susceptibility: <0.05-0.1
Class: F1,F2,M1
Polarization: F1≤25μT; F2≤80μT;M1≤250μT
Finish: Polishing
FAQ
1.7.How about the shipping
Express Courier door to door, Airline and Ocean transportation
2.3.How does your company do regarding quality control
Quality is priority. We always focus on every detail and make quality test three times before goods delivery. ISO, CE and ROHS are approved.
3.8.About trade terms
Normaly T/T for bulk order. EXW, CIF, FOB...available
Advantages
1.Good product quality, reasonable price and high cost performance
2.Have a production workshop of more than 2000 square meters, a complete production line, and a management technical team
3.The company has been engaged in production for more than 25 years and has a dedicated R&D team that develops new products every year
4.The company independently develops and designs new products, and its technology is in a leading position in China. It has a rich product line, including analytical balances, laboratory balances, moisture analyzers, viscometers, acidity meters, etc.
About W&J
W&J Instrument is a professional manufacture and sales of various electronic balances, moisture analyzers, viscometers and laboratory instruments. After nearly 30 years of development, we have developed and produced various high-precision laboratory analytical balances with accuracy 0.1mg, 0.001g, 0.01g, etc.. We have passed ISO9001:2015 Quality Management System certification. In the past 3 decades of years, we have provided more than 300,000 laboratory precision analytical balances with excellent quality to more than 10,000 enterprises and institutions in the chemical, pharmaceutical, textile, food and colleges. We also provide customized electronic balances/ laboratory scales with special functions according to customer needs. With the development, we have introduced other series of laboratory instruments to the market, such as moisture analyzer, rotary viscometers, pH meters, etc. We are also the first company in China research and develop rapid moisture analyzer independently. At present, we are still committed to researching and developing at least one new product each year. Since the establishment of the international trading department in 2014, we have promoted our products to various regions around the world. Our products have been sold to more then 100 countries. And establish a long-term stable cooperative relationship with multiple customers, provide customers with solid and strong support. W&J Instrument has passed ISO, CE(Lvd), CE(EMC), ROHS certification.
CONTACT US
If You Have More Questions, Write To Us
The first thing we do is meeting with our clients and talk through their goals on a future project. During this meeting, feel free to communicate your ideas and ask lots of questions.
We also provide customized electronic balances/ laboratory scales with special functions according to customer needs.
PRODUCTS
If you have any question, please contact us.
Tel: 0086-(0)519-85286336
Mobile: 0086-136 0612 1307
E-mail: weighinginstru@gmail.com
Wechat/Whatsapp: 0086-136 0612 1307
Add: Huayuan Road, Mudu Town, Jiangsu Province, PRC