-------- In message <b17ed93d-0178-456f-b448-a93697e44...@n1k.org>, Bob kb8tq writes:
>Cs is classified rightly as a hazardous substance. Transporting and shipping >hazardous stuff is indeed regulated (as it should be). For various silly >reasons >the minute amount of Cs inside a virtually indestructible container in a Cs >standard falls into the hazardous category. The reason for this is actually not very silly. Very potent Cs137 sources are used in borehole characterization in disturbingly high numbers, and they are licensed and tracked by the relevant national regulatory agency, NRC.gov in the USA. The HAZMAT regulations used to be different for Cs137 (nuclear concerns) and Cs133 (chemical concerns) but smartasses in the oil industry discovered lower costs if they "couldn't remember the number". I belive HP used to have an exemption for shipping factory new CS-tubes *from* their factory, but not for shipping new or used tubes *to* their factory, because customers could not be trusted to pack according to spec. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
