These flasks are RAY-SORB™ processed to protect your light-sensitive contents from short-length lightwaves.
- Calibrated to contain
- With a marking spot
- Supplied with a PTFE Standard Taper stopper having a color-coded handle
- Replacement stopper is 41901R
- Designed from ASTM Specification E288, Class A unserialized requirements
- Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements and then RAY-SORB® processed