S10 (UPU standard)
Okay, imagine you want to send a letter to your friend who lives far away. The letter needs to pass through different countries before it reaches your friend. The s10 (Universal Postal Union Standard) is like a set of rules that helps these different countries work together to make sure your letter gets delivered safely and on time.
These rules say things like how much postage you need to put on the letter, how it should be packaged, and how long it should take to get to your friend. They also make sure that your friend's address is written correctly and in a way that people in other countries can read it.
So, whenever you send a letter or package to someone in another country, the s10 standard makes sure that it gets there without any problems. It's like having a set of helpful instructions to make sure your letter travels smoothly around the world!
These rules say things like how much postage you need to put on the letter, how it should be packaged, and how long it should take to get to your friend. They also make sure that your friend's address is written correctly and in a way that people in other countries can read it.
So, whenever you send a letter or package to someone in another country, the s10 standard makes sure that it gets there without any problems. It's like having a set of helpful instructions to make sure your letter travels smoothly around the world!