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Thomas®

Thomas Cover Glass Circles

Quality and economy

  • Cut from colorless micro sheet which is of the highest resistance to attack by moisture; free from lead oxide; remarkably free from brittleness and very flat
  • Precision controlled thickness is obtained
  • Conforms to Interim Federal Specification NNN-C-001434A
  • Relative absence of brittleness greatly reduces breakage in handling and cleaning, particularly of large rectangles
  • Practically noncorrodible, corrosion under conditions other than tropical is highly improbable
  • Thickness of Red Label Cover Glasses is controlled within the following tolerances:
  • No. 0 - 0.085 to 0.13 mm thick, No. 1 - 0.13 to 0.17 mm thick, No. 11/2- 0.16 to 0.19 mm thick, No. 2 - 0.17 to 0.25 mm thick

Sizes in widest use are packed in a hinged-lid plastic box with die-cut foam plastic support liner. Cover glasses can be withdrawn singly without touching the surface. Remaining sizes are packed in small cardboard boxes. Ten 1 oz. boxes are packed in a convenient carton.

NOTE: thickness correction of microscope objectives is usually etched or printed on the objective.

Circles, No. 1, Red Label

Thickness 0.13 to 0.17 mm

Packed in 1 oz. boxes; case contains ten boxes

Circles, No. 2, Red Label

Thickness 0.17 to 0.25 mm

Packed in 1 oz. boxes; case contains ten boxes

Quantities given below are approximate

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Thomas No.Mfr. No.DescriptionList PriceExt. Price
6662F43 COVER GLASS, 18 mm, Bx. 310
$91.76/BX
1/BX
 
$917.60/CS
10/CS
 
Availability
$0.00
6662F67 COVER GLASS, 25 mm, Bx. 160
$67.89/BX
1/BX
 
$678.90/CS
10/CS
 
Availability
$0.00
6662Q43 COVER GLASS, 18 mm, Bx. 200.
$87.43/BX
1/BX
 
$874.30/CS
10/CS
 
Availability
$0.00
6662Q55 COVER GLASS, 22 mm, Bx. 150
$45.67/BX
1/BX
 
$456.70/CS
10/CS
 
Availability
$0.00
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