alliances (apex)
ANSI stands for 'American National Standards' and accredits standards' developing organisations (SDOs) throughout the United States. Other countries have their own equivalent organsations, but co-operate internationally where common standards are in those countries' interests.
The standards differ because different usages require different standards. For example, drinking water requires chemical treatment and biological treatment, while water for steam generation (Industrial) requires separation of ion and dissolved gasses to prevent either corrosion or fouling. If the water is used for processes, the treatment will focus on removing impurities that have great impact on the balance of the process. Another reason why the standards are different is because of the treatment cost that differs based on each standard.
There are many countries where it is important to keep a certain distance from the person that is being greeted. Many Asian countries adopt this custom for example.
The question isn't as clear as it could be, but making some hopefully educated guesses about what you mean: International standards are those agreed upon by several countries. For example, the kilogram and the meter are international standards. Absolute standards are things that don't need to be agreed upon because they just are what they are. The speed of light in a vacuum, for example, is an absolute standard. The charge on an electron is an absolute standard.
No-one created circuit symbols; they evolved over time. And, in fact, different countries use different standards for their symbols so US standard symbols, for example, are different from European standards.
There are many people who own the rights to jazz standards. Those who publish the standards have rights for example.
The Peace Officer Standards and Training program is an example of the regulatory agency. It is responsible for the licensure of peace.
No, all countries do not have the same rules about animal rights. For example, Spain has bullfights. The middle east requires halal animals to be fully conscious when bled out.
The International Organization for Standardization is an example of an organization that is active in the standards development.
In the seniority system, workers with more experience get preferential treatment in certain respects. Railroad workers with tenure, for example, get shifts that are more desirable.
It is important to be virtuous because there are certain beliefs and standards that you want to uphold. You do not want to be a source of mistrust nor do you want to set a bad example to others that may look up to you.
ANSI valves are based on American National Standards Institute Standards. For example, ANSI 16.34 refer to steel valves. BS valves are based on British Standards. For example, BS1212 refer to ball valves excluding floats.