ASTM F2413-11 Requirements. ASTM F2413-11 Standard Specification for Performance Requirements for Protective (Safety) Toe Cap Footwear covers minimum requirements for the design, performance, testing and classification of protective footwear. The purpose of this standard is the certification of protective footwear.
Chat vs Email. Chat and Email are two new communication media that was created along with the internet. In the most basic, the two are very similar, carrying messages in textual form from one device to another. The main difference between the two is with the speed that they occur.
Question 2) What is Instant Messaging (IM) Answer: Unlike email, instant messaging is a real-time messaging format. IM is really a specialized form of 'chat' between people who know each other. Both IM users must be online at the same time for IM to fully work. IM is not as popular as email, but it is popular amongst teenagers and people in office places that allow instant messaging. Question 3) What is Chat? Answer: A chat is a real-time online conversation between many computer users.