Temperatures above 80 F (26.6 C) and prolonged exposure to oxygencontaining gases should be avoided as these condi tions lead to discoloration and gum formation.

(ORC) is leading the effort to comment on the possible upgrading of certain standards (NFPA, for example) to current levels from those adopted in 1971.

The fact that talc is very frequently found with a signi ficant fibrous content now leads to a very important situation since the total quantities of talc mined in the U.S. exceeds that of asbestos. , < i It was pointed out by Cralley(2) that the majority of cos metic talcs contain significant quantities of fibrous particles.

., Lead I n Gasolfne: Impact on C u r r e n t and F u t u r e Autor?

The low air velocities and high degree of fluctuation at the work bench, plus the lack of definite direc tion of air flow shown by the smoke tubes, lead to the conclusion that the canopy hood is ineffective as presently used.

Avoid handling conditions that may lead to spills or leaks or the formation of mist or dust.

All tanks, piping, instrument leads, relief valves, and equipment in contact with the monomer should be of steel and designed to have a working pressure of at least 125 psig. corresponding to the vapor pressure of vinyl chloride at approximately 150*F..

., sold It has begun a "careful examination" that may lead to the possible deferral of a number of the 150 building projects, costing 353 million, under way In 72.S0'J stop vinyl chloride production and use."

The problem with this method is that extra non condensible gas must be handled by the recovery system and this would lead to higher VCM losses from the recovery condensers.

MacBnde, managing editor 4T The better-times gap in VCM capacity could lead to new'captive ventures The shortage of VCM that hurt PVC production in 1973 and early 1974, a period of peak demand, could reap* pear before next summer.

Common problems and methods from these varied disciplines have given impetus to a new specialty, environmental health sciences; it is to be hoped that this field will provide a suitable context for continued systematic work on the topic of porphyria and the environment, with emphasis on lead and potyhatogenated aromatic compounds1.

But do not ban the use of asbestos, because it could lead to the banning of other materials.

Oil-resistant rubber rings shall be furnished when specifically re quested provided there is sufficient lead time.

The capital reduction philosophy tends to reduce areas of flexibility which will lead to more frequent outages of longer durations which will affect production and project payout.

Seli- was told yesterday at a hear koff said He said he quietly notified the Food and Drug substance iinn tinhge hoinghltyhetopexrvaisivceness substance Administration of this in 1968 modern society because we didn't think it - over the media But medical nothing Selikoff the leading Ameri very ^ authority in the field much happened said cans are all contaminated In fact Dr.