What does solids mean? What is the formula for calculating solids?

The solids content is the mass percentage of the total amount left over after the emulsion or coating has been dried under specified conditions.

In SY T 5329-2012 "Recommended Indicators and Analysis Methods for Water Injection Quality in Clastic Rock Reservoirs", suspended solids are defined as substances that are insoluble in water and exist in water and cannot pass through the filter, that is, they cannot be filtered through cellulose lipid microporous membranes with an average pore size, and are filtered by gasoline or petroleum ether.

After the solvent washes off**, the substance on the membrane that is insoluble in oil and water.

The suspended solids content is the water quality test of oilfield reinjection wastewater.

An important indicator, the reinjection sewage contains a large number of suspended solids, the large number of these suspended solids will cause the blockage of the percolation end face and seepage channel of the water injection well to a certain extent, resulting in water injection difficulties, and the suspended solids content directly reflects the effect of oilfield sewage treatment, which is related to the quality of water injection and affects the production of the first class.

In the actual detection of suspended solids content, due to:

The equipment, filter membranes and testing personnel used by the first and second level water quality testing institutions have different understandings of the methods specified in the standards, resulting in large differences in the test results.

Pass. The methods of back-to-back comparison experiments carried out by the first and second level water quality testing institutions analyzed the above influencing factors and formulated specific solutions. In accordance with the requirements of the headquarters water quality testing, Henan Oilfield.

For. The first and second level testing institutions are equipped with the instruments and equipment required for the detection of suspended solid content to meet the needs of water quality testing.

In fact, the so-called solid content is the mass percentage of the total amount of the remaining part of the paint after drying under specified conditions. In fact, it is more accurate to call it "non-volatile content". It is generally believed that the solid content is greater than 60% that is, the high solid content coating, which has the advantages of high production efficiency, low transportation cost, fast drying and low energy consumption compared with the coating with a solid content of less than 50%.

The higher the solid content of the coating, the better the environmental performance. After the coating is applied to the substrate, the thinner in the formulation, such as water in water-based paints and xylene in oil-based paints, will evaporate, making the dry film thickness of the paint lower than that of wet film.

The higher the solid content in the coating, the lower the components that need to be evaporated, and the less the components that pollute the atmosphere such as xylene will evaporate, and the better the environmental performance.

Formula for calculating solid content: For example, the weight of the test sample is the weight of water after drying, then the calculation formula is: solid content).

XFGHL-120S solid content detector is used to measure water coatings, paints, glues, milk, toothpaste, graphene, separators, white latex, water reducers, additives, etc., these industries are high for the detection of solid content.

In the field of solid content detection such as coatings, paints, and slurries, the contradiction between measurement accuracy and measurement speed has not been solved, so Xiamen Xiongfa Instrumentation has established a professional R&D team since 2010, and has been committed to the research and development and production of solid content testing equipment, and has done a lot for the current market of white latex, water reducer, mud, paint, glue, slurry and other industries.

The landmark XFGHL-120S solid content detector was developed in a systematic analysis experiment, which is suitable for the determination of solid content values in samples in the laboratory and production process.

The content is calculated by n=c·v. Refers to the percentage of the weight of the solute contained in the solution. When a soluble substance is dissolved in a solvent, the density of distribution in that solvent is expressed as a percentage, which is called the percentage concentration of the solution, which is often expressed as c%.

The solids content is the solid fraction of food containing solid and liquid two-phase substances, excluding soluble solids. Total solids is a technical indicator in the food industry, which reflects the soluble solids and insoluble solids content of food. Theoretically equivalent to the dry matter index.

A commonly used technical parameter in the food industry, soluble solids refers to the general term for all compounds dissolved in water in liquid or fluid food. Including sugars, acids, vitamins, minerals, etc.

Sample determination:

1. Calibrate the refractometer according to the manual before measurement.

2. Separate the prisms on both sides of the refractometer and wipe them with absorbent cotton dipped in ether or ethanol.

3. Dip 2 3 drops of the treated sample with a glass rod fused at the end and drop it on the prism surface of the refractometer** (be careful not to touch the mirror surface of the glass rod).

4. Quickly close the prism and let it stand for about 1min, so that the sample is uniform and free of bubbles, and fills the field of vision.

5. Align the light source and observe the objective lens through the eyepiece. Adjust the indicator gauge to divide the field of view into light and dark parts, and then rotate the fine adjustment spiral to make the boundary between light and dark clear, and make the dividing line just at the intersection of the objective lens. Read the percentage or refractive index in the eyepiece field of view and record the prism temperature.

6. If the scale of the eyepiece reading scale is a percentage, it is the percentage content of soluble solids; If the eyepiece reading scale is refractive index, it can be converted to a soluble solids percentage according to Appendix A.

The percentage of soluble solids at Appendix B is converted to 20.

1.Dry matter content: The mass of the substance after removing the water accounts for the content of the original substance, such as the mass of vegetables and potatoes after drying accounts for the content of fresh vegetables.

2.The solid content refers to the content of solid matter in the solid-liquid mixture, for example, the lumpy fruit in the canned fruit is the solid, and the mass ratio of it to the whole can is the solid sock content.

3.If the fruit in the canned fruit is dried and turned into dried fruit (including sugar, fiber, starch and other substances), the dried fruit is dry matter, and its mass ratio to the canned food is the dry matter content.

4.The difference between the two is that the dry matter content must not contain water, while the solids content may contain moisture.

Solid content refers to the amount of solids contained in the additives or slurries. Method for determining solids:

Use the analytical balance to accurately weigh about 2 grams of the original sample in the surface dish, put it in the oven, under the condition of 105 108, dry for three hours, take out and weigh, continue to put it into the oven, treat it under the same conditions for 30min, take it out and weigh it again, and repeat it twice. Compare the data three times to see if a constant weight is reached, and then calculate the solids content according to the following formula.

Solid content: dry constant weight, raw weight of material: 100

Generally, the measurement is carried out by the drying method.

Dry in an oven at 103 degrees for four hours with a sample weight of 1 2 g. Accurate with an analytical balance.

The weighing flask that is washed and dried before weighing is a g, the sample weight is b g, and the weighing (including the sample and the weighing flask) c g after drying is calculated, and (c-a) b*100% is calculated

Solids content is obtained.