White cardboard box, lid and base; contains ten glass vials; each a slightly different shade of colour standard Lamotte Purple; each vial has a transparent label near top; with maker name and pH standard; vials separated by cardboard dividers; tissue paper padding to top.
White cardboard box, lid and base; contains ten glass vials; each a slightly different shade of colour standard Lamotte Purple; each vial has a transparent label near top; with maker name and pH standard; vials separated by cardboard dividers; tissue paper padding to top.
Number Of Parts
12
Part Names
a - box base - Size: Length 18.8 cm. x Width 13.7 cm. x Depth 2.0 cm.
b - box lid - Size: Length 18.8 cm. x Width 13.7 cm. x Depth 2.0 cm.
c - vial: Lamotte Purple pH 9.6 - Size: Length 12.0 cm. x Depth 0.5 cm. x Diameter1.6 cm.
d - vial: Lamotte Purple pH 9.8 - Size: Length 12.0 cm. x Depth 0.5 cm. x Diameter1.6 cm.
e - vial: Lamotte Purple pH 10.0 - Size: Length 12.0 cm. x Depth 0.5 cm. x Diameter1.6 cm.
f - vial: Lamotte Purple pH 10.2 - Size: Length 12.0 cm. x Depth 0.5 cm. x Diameter1.6 cm.
g - vial: Lamotte Purple pH 10.4 - Size: Length 12.0 cm. x Depth 0.5 cm. x Diameter1.6 cm.
h - vial: Lamotte Purple pH 10.6 - Size: Length 12.0 cm. x Depth 0.5 cm. x Diameter1.6 cm.
i - vial: Lamotte Purple pH 10.8 - Size: Length 12.0 cm. x Depth 0.5 cm. x Diameter1.6 cm.
j - vial: Lamotte Purple pH 11.0 - Size: Length 12.0 cm. x Depth 0.5 cm. x Diameter1.6 cm.
k - vial: Lamotte Purple pH 11.2 - Size: Length 12.0 cm. x Depth 0.5 cm. x Diameter1.6 cm.
l - vial: distilled water - Size: Length 12.0 cm. x Depth 0.5 cm. x Diameter1.6 cm.
Provenance
Colorimeter standards used for comparing pH of colours
Label to box lid: LaMotte // Standards / Lamotte Purple / One Set // pH 9.6-11.2; labels to vials read: LaMotte Chemical // pH // Lamotte Purple // The LaMotte Chemical Products // Chestertown, Maryland, USA
Permanent Location
Storage Room 0010
0010-F7-2
Condition Remarks
overall condition good; transparent 'sticker' labels yellowing; and becoming brittle; some are losing their adhesion and are loose or falling off; #2: label glue soaking cardboard
Copy Type
Original
Reference Types
Person
Book
Reference Comments
Dr. Wally Breck; Dr. Robert C. Wheeler; item cited in "Scientific Instruments, Laboratory Apparatus and Equipment," Central Scientific Company of Canada, Toronto, 1942, p. 435, item 21550M