The ticker symbol and de facto currency code for Bitcoin Cash is BCH.
BCH is not compatible with !SO 4217 and while XBC is in conflict with the European Unit of Account 9, BCH is already widely adopted as a "standard". XCH is recommended as a currency code for Bitcoin Cash as of October 11, 2019.
Bitcoin Cash units aren't officially standardized. These are de facto standards:
There is no official logo or color scheme for Bitcoin Cash, however bitcoincash.org currently recommends an orange logo (HTML color #f7941d) inside a rectangle. The Bitcoin symbol is tilted -20 degrees (instead of the +20 degrees Bitcoin core uses). Many major companies have chosen to use a light green color (HTML color #8dc351). Examples:
The CashAddr format is the standard format for Bitcoin Cash addresses. CashAddr was created to avoid confusion. Some wallets use the CashAddr format while others use the Legacy format (Legacy format meaning the original Bitcoin address format).
"Payment Requests" are requests for specific amounts typically used in merchant transactions. The specifications are available on GitHub.
Cash Accounts are used to attach a human readable name to a Bitcoin Cash address.
Memo protocol is a protocol for sending messages/attaching text to transactions on the Bitcoin Cash blockchain.
on definitions page
Bitcoin Cash (BCH) is a peer to peer electronic cash system. This means payments can be sent directly from one party to another without going through a bank or third party. Peer to peer implies that either side can initiate a session and have equal responsibility.