30A
ANALYTICAL
Now—anyone can make accurate determinations with a
CHEMISTRY
New Developments IN HIGH PRESSURE VALVES
Designed to measure both
DIFFUSE REFLECTION
(whiteness,
bright-
ness, color) a n d SPECULAR REFLECTION (shininess, gloss) A c a r e f u l l y constructed a n d h i g h l y versatile instrument f o r f a s t a n d accurate d e t e r m i n a t i o n s o n solid surfaces of every descript i o n , p o w d e r s , pastes a n d o p a q u e liquids. To the basic i n s t r u m e n t can be a t t a c h e d a n y o f a number o f search units, each engineered especially f o r one o r more specific purposes. •
Paper
•
Detergency
brightness
•
Paint gloss tests
tests
•
Line or battery operated models
• 1
12 i n t e r c h a n g e a b l e search units
tests
NEW SPEED VALVES For fast assembly of High Pressure Apparatus setups. Operating pressure up to 6,000 p.s.i. The ability to make fast changes safely, in high pressure apparatus setups is of paramount importance to laboratories engaged in high pressure work. The new Spe«d Valve shown above features a simplified method of making a perfect gas tight connection, withoutthreading or beveling the tubing. The time thus saved will pay for the valve in a very short time. 30,000 LB, SERIES V A L V E
100,000 LB. SERIES V A L V E
A variety of color filters available, including those for ICI Tristimulus values.
• Available in all styles. • Three sizes, %" or %" or Me" Body —Type 303 18-8 stainless steel • Stem — Type 410 stainless steel — heat treated • Packing Gland & Handle — Type 416 stainless steel • Self-sealing packing • Finger tip control
• Body — Type 410 stainless steel —heat treated • Incorporates floating needle principle • Stationary stem •— mounted on ball thrust bearing • Removable seat • Available in angle style only, for one size tubing only.
METERING V A L V E
60,000 LB. SERIES V A L V E
MURGATROYD 2 4 Î 8 / 3 —R e f l e c t i o n Meter Model 610, for 110 volt, 00 cycle, A C. Current . . , $120.00 2428/19—Some as 2428/3, but for 6 volt storage battery operation. Without battery 105.00 2428/32—Same as 2428/3, but for either 110 volt 60 cycle A.C. or 6 volt storage battery operation. Without battery 135.00
2421/12—6 volt s t o r a g e battery $ 17.00 2428/4 — S e a r c h unit for general use, with green tristimulus filter 55.00 2428/5 —Search unit for paper brightness t e s t s , with built-in Wratten filter # 4 9 45.00 2428/8 — S e a r c h unit for 60" gloss tests 65.00
Write for Full Information on These and Other Units
SCHAAR & COMPANY Complete Laboratory 748 W . LEXINGTON STREET
Equipment CHICAGO 7
• Available in all styles • Body—Type 410 stainless steel • Stem—Type 410 stainless steel — heat treated • All other parts—Type 416 stainless steel • Self-sealing packing • Finger tip control
• 30,000 lb. series • Available in all sizes — x/i* or M" or % 6 " • Straight through and angle type • Body — Type 303 stainless steel — heat treated • Stem —Type 410 stainless steel — heat treated • All other p a r t s — T y p e 416 stainless steel • Self-sealing packing • Finger tip control
Write for BRAND NEW 12 pa 3 e bulletin N o . 95 on High Pressure Valves, fittings, and autoclaves.
AUTOCLAVE
ENGINEERS
DESIGNERS, MANUFACTURERS * DISTRIRUTORS OE LABORATORY I PHOT PLANT HIGH PRESSURE EQUIPMENT 3737 WEST CORTLAND STREET . . . . CHICACO 47, L 11 Ν Ο ι S , U.S.A.
I j
