Fish-Schurma

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VOLUME

24,

NO.

10,

OCTOBER

1952

43 A

HOEPPLER VISCOSIMETER PRECISION MODEL

FALLING BALL

VISCOSITY DIRECTLY IN CENTIPOISES

NYLAB

SCIENTIFIC INSTRUMENTS W APPARATUS

(from O0 C t o 1 0 0 ° C ) Weighing Funnel

EQUALS Β χ (Sb-Sf) χ Time Β = Ball Constant Sb = Sp. gr. of ball

/L

For SPEEDY, PRECISE WEIGHING . . . NO LOSS IN TRANSFERS—

Sf = Sp. gr. of fluid The Hoeppler Viscosimeter pro­ v i d e s a fast a n d accurate m e t h o d o f determining the viscosity of gases, l i q u i d s , o i l s , p l a s t i c s , syrups, v i s c o u s tars a n d dark c o l o r e d l i q u i d s . D i ­ rect r e a d i n g in c e n t i p o i s e s ( o r c e n tistokes). From 0.01 to 1,000,000 centipoises. Accuracy 0 . 1 % to 0.5%. Small s a m p l e ( 3 0 c c ) re­ quired. Results consistent and re­ producible. O r d e r d i r e c t o r f r o m l e a d i n g lab­ oratory s u p p l y d e a l e r s .

Write today for Bulletin HV-303. Manufactured by FISH-SCHURMAN CORP. 72 Portman Road, New Rochelle, Ν. Υ.

Fish-Schiirma

Place materia] to be weighed in covered-front a n d / o r open-rear sections. Complete transfers easy—rinse material directly through funnel tip into receiver. Stable, flat base . . . . lightweight. Catalog No, 12803 12804 12805

Diam. (mm) Length (mm) 15 25 38

Price, dozen

40 65 100

$ 9.00 10.50 13.50

Orders must be in lots of do^en of ont SÎT,*. 10 % discount on orders of 6 daqtn of same or assorted sifts.

Improved Titrator Stan

For ACCURATE TITRATION . . . ELECTROMETRIC or CALORIMETRIC Sturdy new support takes electrode holders provided with p H Meters . . . facilitates removal or addition of beakers, Erlenmeyer flasks, etc. Silent, built-in, motor-driven stirrer permits use as electro-magnetic stirrer when not needed for titrations. 115 Volt AC.

Catalog No.

Price

33993

$75.00

Catalog No. 7

LIGHT WEIGHT COMPACT WELL BALANCED O b t a i n a b l e in a variety of sizes

PLATES A N D SEATS ACCURATELY GROUND LOOSE PLATE CONSTRUCTION ALLOWS THOROUGH CLEANSING OF THE FILTERING COMPARTMENT

COORS PORCELAIN C O M P A N Y COLDEN COLORADO

For EASY ORDERING of all LABORATORY NEEDS— Comprehensive, easy-to-use. Latest instruments and apparatus. Handy cross-reference section. Over 3500 clear, factual illustrations. . . descriptive material. Items separately numbered. Printed on heavy stock, bound in durable Fabrikoid. TO GET YOUR COPY: Write today on company or institution letterhead giving name and title.