f control control relays component dorico* a-c and d-c for auxiliary and time delay applications r t V descriptive bulletin 16-301 auxiliary relays timing relays type AF type BF < '1 r I type NH, NHF type AM type DNR type Z type DDN type AMB ./ selector guide type description open con volts tact rating continuous total poles NO poles AT Br NH NHF NHL Z DnR compact machine tool relay 10 amps compact machine tool relay 6 impl general purpose machine tool 10 amps relay max. 6 poles NHL is mechanically latched-in design NHF is fixed contact design general purpose machine tool 10 amps relay max. 2 poles DPDT general purpose machine tool relay mechanically inter* locked 10 amps 600 a-c 10 max. 300 a-c 8 max. 600 a-c 2 to max. 6 max. 5 max. 8 max. 6 max. 300 a-c 250 d-c .. 2 max. 2 max. 600 a-c 16 max. 16 max. max.

Excessive temperature in extrusion of polyethylene, for example, would result in polymer cracking and/or oxidation, lower tensile strength, chemical resistance and lead to films with poor slip and blocking prop erties.

HE \f. /...

BY KEVIN P.

It is used throughout the industry as widespread and leading die-casters have installed Aroclor 1248 to replace combus tible oils and also to replace other noncombustible organic fluids, because of the demonstrated good performance obtainable with Aroclor 1248 and because of its lower initial cost and lower "make-up" require ments in the system.

Several leading manufacturers of heating equipment are in a position to build or offer Aroclor heating units to meet specific requirements. .

., Euston Lead Co., The Glidden Co. of Oregon, Metals Refining Co. and the Mamolith Carbon Paint Co., Inc.

ASI 00004261 i r3 Ir.i : as lead:: s'- h - higUX' or.-.

' *1 MASTER COPY \| , *` STANDARD PROCEDURE

DATA SHEET D-308 (D-Chem 47) Benzene (Benzol) Published by National Safety Council 425 North Michigan Avenue, Chicago 11 1.

Jau*ar 1*. mr THE MEDICAL JOURNAL OP AUSTRALIA 76 ^ PNEUMONOKONIOSIS IN VICTORIAN INDUSTRY. ... 5(20 ___ hazardous, inasmuch as the silica-containing substances are newly ground.

It is used throughout the industry as widespread and leading die-casters have installed Aroclor 1248 to replace combus tible oils and also to replace other noncombustible organic fluids, beoause of the demonstrated good performance obtainable with Aroclor 1248 and because of its lower initial cost and lower "make-up" require ments in the system.

u---- | American j Tlie Application of Computer Science to Industrial Hygiene J.

Changes should be sent Box 2371 or called to PR-5111 Regional Health Conference Plans To Be Discussed Development of the fourth an nua) Gulf Coast Regional Con ference on Industrial Health will be discussed Jan 16 at the firs'. 1951 meeting of the Texas sec- tion of the American Industrial Hygiene Association James W Hammond, presrdem of the sssocisuon and vice-chair man of the Chamber public health committee saic principal speaker ai the meeting u-il) be William R Bradle\ director of industrial hygiene for tnt Amer ican Cyamide Compam committee are invited lo the din ner which will be held a'. 7 p rr in the Houston Club Also invited are representa tives of the Texas timversm and Baylor medical schools along with representatives of leading industries in the Gulf Coast area Dr Denton Kerr, chairman of the Chamber public health com mittee. pointed out that principal reasons for the organization, of the Texas section of the associa tion was for promotion of tnr annual industrial health meeting here and the developmem of in dustrial hygiene throughout Texas industry Convention List Set For 1951-53 A convention list for Houston 1951-1953, has been compiled b\ the Chamber convention com mittee and is being mailed this week This was announced bv Max Levine, new chairman of the committee, who pointed out that as a new feature, this issue will key all conventions that feature exhibits He Mid the luting shows 77 conventions to be held m Hous ton during 1951 and that anproximately 40.000 persons will come to the city lor these meet ings.

Frederick, as Chairman of the Policy Study Committee, to lead the discussion on this ` report.