M1 standard weight 25kg lock type 304 stainless steel

M1 standard weight 25kg lock type 304 stainless steel

Heavy objects used for calibrating weighing equipment in industrial environments. They are usually made of materials such as cast iron, stainless steel, or brass, and come in various shapes and sizes. Test weights are used to verify the accuracy of weighing equipment, such as scales, scales, and weighing sensors, which are used in various industries such as manufacturing, transportation, and agriculture

1、 High quality stainless steel weights for experiments

Material: Stainless steel, 304 stainless steel

Grade: F1/F2/M1

Specification: 10kg, 20kg, 25kg, 2000kg

Packing: wooden case

Application areas: Weighing equipment manufacturers,

2、 Small mass stainless steel weights for experiments

Material: 316 non-magnetic stainless steel, 304 non-magnetic stainless steel, 2CR13 stainless steel

Grade: F1/F2/M1/M2

Specification: 1g2g5g10g20g50g100g200g500g1kg5kg 5kg

Packaging: Plastic Box

Application: Balance calibration, instrument testing, laboratory weighting

3、 Common weight parameters

Standard weights are usually divided into kilogram groups . (1-20kg)... gram group . (. 50. and milligram groups (1~500mg), there can also be microgram groups or other weight combinations as needed (such as in

The additional weight group used on the platform scale. The combination forms of weights usually include 5, 3, 2, 1, 5, 2, 2, 1 and 5, 2, 1, 1.

Electronic balance weight set specifications (quality range) 20 kg~ 10kg、10kg ~1kg、5kg~1kg、 2kg- 1kg、2kg~ lmg、lkg ~ lmg、500g~lmg、 200g~lmg、

100g~lmg, 500mg~lmg (tablet size), 500mg~10mg (circle size), 50mg~lmg (circle size), single weight specifications (nominal value) 20kg, 10kg, 5kg, 2kg, 1kg

500g、200g、 100g、 50g、 20g、 10g、 5g、 2g、1g

M1 standard weight 25kg lock type 304 stainless steelIt is a physical measuring tool that reproduces a given quality value in a fixed form, with strict regulations on its structural characteristics (shape, size, material, surface quality, etc.) and metrological characteristics (nominal value, tolerance, etc.). Only with the help of scales or scales can the quality of an object be determined. The nominal value of weights is usually taken as a series of 1 × 10k, 2 × 10k, and 5 × 10k, where K is a positive integer, negative integer, or zero.

According to the different accuracies and purposes of weights, the weights used for calibration or verification of weighing instruments with high accuracy, as well as the weights used for value transfer in the laboratory, are usually referred to as working weights, standard weights, and reference weights; The weights directly used on site to determine the mass of the object being weighed are called working weights. OIML divides weights into seven levels: E1, E2, F1, F2, M1, M2, and M3, and provides detailed regulations on their uses, tolerances, structural shapes, materials, and processing requirements.

Maintenance and upkeep of weights

1. Firstly, according to the error requirements of the object being measured, appropriate levels of weights and scales with appropriate accuracy should be selected. It is necessary to prevent the blind use or abuse of high-precision weights without a concept of accuracy, and to avoid and overcome the idea of "if possible, try to choose high-precision scales and weights". Inappropriate selection of high-precision instruments and equipment not only results in low work efficiency, but also is a waste.

2. When taking and placing weights, use tweezers and clamps. For larger weights, such as kilogram weights, they can be taken by hand, but fine yarn gloves should be worn or wrapped in clean silk, gauze, or deer skin. Do not take weights with bare hands! Be careful when taking and placing weights. Do not let the weights collide magnetically with each other. Be particularly careful not to let the weights hit other objects or fall to the ground. The strength of the tool holding the weight should be sufficient, and the edges should be rounded to avoid damaging the weight.

3. To prevent loss of weights and mixing of weights from different groups. Develop the habit of using weights either on the balance plate or in the corresponding nest in the weight box of this group, and do not casually place them elsewhere.

4. For weights with the same nominal value within the same group, it is generally recommended to use weights without dots first, and then use weights with dots if necessary.

5. After using the weights, the number of weights in the weight box should be counted to confirm that they are not lost or mixed with other sets of weights before covering the weight box. The weight verification certificate is placed in the weight box.

6. The weights are stored in the dryer. The moisture absorbent in the dryer generally uses palladium modified silica gel. Attention should be paid to timely baking or replacing discolored silicone.

7. It is not allowed to open the weight adjustment chamber by oneself. If the coating of the weight is found to have peeled off or rusted, or if there is any abnormality in the quality of the weight, it should be stopped from use and immediately sent to the metrology department for verification.

8. Weights should be sent to the metrology department for calibration according to the prescribed period. The calibration period is generally one year, and in cases of frequent use, the inspection cycle should be appropriately shortened. Weights without certificates or corresponding qualified marks are not allowed to be used.

9. The weight gauge sent for inspection should be properly packaged. Special attention should be paid to the kilogram group weights being damaged during transportation, and the milligrams group small weights leaking out of the gaps in the weight box and being lost. For weights for long-distance transportation, words such as "Handle with Care" and "Rain and Moisture Resistant" should be prominently pasted on the outer packaging box.

10. Regular cleaning should be carried out. For weights with less pollution, simply wipe off the dust and dirt with a clean silk cloth or deer skin. For heavily polluted weights, use degreased cotton dipped in a small amount, aviation gasoline or benzene for scrubbing. Be careful not to let the washing solution seep into the weight adjustment chamber. After cleaning the weights, they should be air dried for at least one day, and then wiped again with a dry silk cloth to remove any water stains. For surface painted weights, the above organic solvents should not be used for cleaning to prevent the paint from melting and peeling off. The weights coated on the surface have a relatively low degree, and can be cleaned with soapy water.

Precautions for use

1. Store standard weights in their original packaging

2. Store the weights next to the balance

3. Handle with care

4. Clean according to OIML/STM recommendations

5. Use specialized lifting clamps to operate larger weights

6. Check for damage before use

This helps to avoid weighing errors and costs related to rework, waste disposal, and product recalls.