Advice 1: How to calculate ppm

The word "ppm" is associated in our minds in recent years with the amount of alcohol consumed and dissolved in the blood alcohol. However, this term is familiar to us from school in connection with the subject of physical geography "the Salinity of the world ocean".
How to calculate ppm
You will need
  • basic knowledge of mathematics
The term ppm means one-thousandth part of a substance present in another substance.

For example, the salinity of the water equal to 30.0 0/00 (ppm) means that in one liter of this water contains 30 grams of various salts.
The average salinity of sea water is 35 0/00.

In sea water dissolved 88.7% of the chlorides. Basically it is sodium chloride, i.e. table salt or NaCl.
The main method of determining the salinity of seawater – a method of titrovaniya.

To determine the salinity of the water in your aquarium with the marine animals, take away from it in a separate vessel, for example, 1 liter.

Add sample water a certain amount of silver nitrate (AgNO3). Silver nitrate will combine with sodium and chloride will precipitate.

Weigh the precipitated silver chloride and, given that the ratio of the amount of sodium chloride and other substances is always constant, calculate the salinity of the water.

However, it will be easier, if you did the measurement of salinity with a hydrometer, calibrated at room temperature.
With regard to the degree of intoxication, it is also expressed in ppm.

For example, if the device shows degree of intoxication 0.5 0/00, this means that in 1 liter of human blood dissolved 0.5 g of ethyl alcohol.

The amount of alcohol consumed with this indicator, different people will be different. Depend the result will be, first, floor, second, from the masses of people.

Women have the same dose of alcohol, and men are provided equal in weight will show on the device a greater degree of intoxication.

The reason is that in the male body proportion of liquid, including blood, is 70% of the entire mass, and in women only 60%.
To calculate an approximate degree of intoxication in‰, perform simple calculations:

The amount of alcohol consumed in grams multiply by the strength of the drink and divide the result by your weight with a coefficient of 0.7 or 0.6.

For example: 250 grams of vodka and multiply by 0.4 (the strength of vodka 40%) to obtain 100 g
Divide the result by your weight ( you are a man weighing 80 kg) and K = 0.7.
100 : (80х0.7) = 100 : 56 = 1.79 0/00 .

Such a result would be directly after the intake of 250 grams of vodka.

Advice 2 : What is 1 ppm

The word mill comes from the Latin mille, which translates as "a thousand". It means one thousandth of something in relation to the whole or 1/10 of a percent of something. Often the term is associated with the amount of alcohol in the blood of drivers.
What is 1 ppm
Ppm is indicated by a fraction where the denominator 1000 (0,001 = 0,1 %). Zero ppm - 0 ‰ (0), 1 ‰ - 1 ‰ (0,1 %), etc.

In ppm, in particular, expresses the level of alcohol in the blood. So, 0.5 ppm is 0.5 g of alcohol per 1 liter of blood in the body, and 1 ppm, respectively, in 1 g per liter.

Absolute sobriety when the alcohol in the blood does not, does not happen. All people in the body there is a small amount of endogenous ethanol, each this individual and may be, for example, of 0.008, and in some cases, and 0.4 ppm.

Figure ppm and the condition of the driver

A person is considered sober if his blood is not more than 0.3 ppm of alcohol. The concentration of 0.3-0.5 ppm gives you easy degree of intoxication. The person becomes less careful, are prone to recklessness and risk. He says less moving light sources.

At 0.5-0.7 ppm of alcohol in the blood, the driver loses the ability to distinguish colors, to correctly determine the distance, to feel the balance. It is worse than adapting to situations, worse driving, less critically evaluates their condition. The reaction slows down.

The person is in a state of pronounced intoxication, when he in the blood of 0.7-1.3 ppm alcohol. He's not paying attention to traffic lights, late notices objects on the roadway, braking ahead of the car, maneuvers the car up close. The reaction slowed considerably, attention reduced, and the ability to adequately assess the situation around.

When the rate is 1.4-2.5 ppm, it is a strong intoxication. This driver loses control over vehicle, loses the fear of becoming arrogant and careless. His speech becomes slurred and movement is not coordinated. The driver admits serious mistakes on the road - confuses the brake and gas switches the wrong speed, forget about turning signals.

3.0 and 5.0 ppm characterize severe poisoning. And when is 5.0-7.0 ppm is likely fatal.


In most countries the penalty for driving under the influence.

Till 2010 in Russia admissible norm of alcohol in blood was 0.3 ppm. In 2010, introduced the so-called dry law and zero ppm, which caused indignation on the part of many motorists. It was stated that the consumption of kefir and kvass increases the amount of alcohol in the body and of the individual characteristics of people with initially high content of alcohol.

In Russia on 1 September 2013 entered into force the law under which the intoxication is the presence in blood of the driver of absolute ethyl alcohol in a concentration of 0.16 mg or more per 1 liter of exhaled air, i.e., larger than the measurement error of concentration. For driving in a drunken state the penalty and deprivation of driver's license for a period of up to 2 years.

Adopted by the Ministry of health in 1967 guidelines require to consider the person sober, if the content of alcohol in one liter of his blood not higher than 0.5 ppm. This applies to drivers unconscious and dead that it is impossible to apply conventional methods of determining the degree of intoxication and have to take a blood test. These figures are oriented forensic medical experts.
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