Sentence examples similar to non-standard character from inspiring English sources

Please read this to see how to represent non-standard characters.

My Dad Says' due to the inclusion of non-standard characters in its title.

Finally, Table  2 should be edited – currently some cells are filled with non-standard characters whose meaning is difficult to decipher.

Emoji is a non-standard set of characters, and is not supported by all systems.

Any other non-standard symbols, spaces, or special characters are ignored.

Sequences are checked for the correct length for the locus and the absence of any characters other than A, C, G and T; the submitter is alerted if any entered sequence is of non-standard length or contains unexpected characters.

In our implementation, in addition to 20 amino acids we use X as a 21st character to represent non-standard amino acids.

Since each tweet consists of only 140 characters, users tend to use acronyms, non-standard words, and social tokens.

F Flag character: either 'S' for Standard InChI parent or 'N' for non-standard.

InChIKey inherits the Standard or non-standard nature of the parent InChI (signified by a dedicated flag character).

"What does non-standard mean?