Avoid placing ticks in black film containers or using cellophane tape to mount the tick to paper, a note card or a slide if it needs to be identified or tested.
If you forgot your camera, are out of film, or your digital card is full, if you have to fumble around getting the right lens on, the moment may be gone before you can recover.
"Archtectural Coatings Color Card" is another coatings color card standard after Film Color Standard Sample Card, the design principle, structure, fabrication process and usage are sketched.