Page 23 - Demo

“Your Safer Source for Science”
Balances, Scales
21
Balances, Scales, continued
Spring Scales, Push/Pull Type
Students learn that force is a push or a pull, but may wonder how do you measure a push? Use these versatile scales to measure both pulling and pushing forces—or weigh a suspended object from the large hook. Durable and color-coded scales are calibrated in grams and Newtons to measure mass or force.
Spring Scale, Pull Type
Easily zeroed and designed to deliver reproducible results time after time. These instruments have an aluminum face with high-contrast markings allowing for quick and accurate readings. The housing is a rugged and durable polystyrene. These scales are perfect for general weighing, force experiments, action–reaction demonstrations, and more.
Spring Scale, Push/Pull Type AP7337, etc.
Catalog No.
Description
Capacity
Price/Each
AP7337
Spring Scales, Push/Pull Type
250 g
$15.30
AP7338
500 g
15.30
AP7339
1 Kg
15.30
AP7340
2 Kg
15.30
Catalog No.
Description
Capacity and Readability
Price/Each
1–19
20–39
40 or more
OB2153
Spring Scale, Pull Type
100 g x 1 g
$18.15
$17.22
$16.34
OB2154
200 g x 2 g
18.15
17.22
16.34
OB2155
500 g x 5 g
19.00
18.03
17.01
OB2156
1000 g x 10 g
19.00
18.02
17.15
OB2157
2000 g x 20 g
18.15
17.22
16.34
AP8857
20 N x 0.5 N 2000 g x 50 g
19.45
18.45
17.56
OB2017
50 N x 1 N 5000 g x 100 g
19.45
18.45
17.56
Balloons
Balloons, Latex
Helium quality latex balloons, assorted colors. A 12" balloon will hold approximately 11 liters of gas when fully inflated (approximately one-half of a mole). A lecture bottle of helium will fill about five 12" balloons or 12 of the 5" balloons.
Barometers See flinnsci.com. Batteries
Batteries
The AAA, AA, C, D, 6 V and 9 V batteries shown are all alkaline batter- ies. Consumer Reports states that while alkaline batteries cost three to five times more than acidic batteries, alkalines last 10 times longer.
Batteries, Calculator-Type
Quartz battery is ideal for small electronics like pH meters, calculators and watches. Silver oxide 1.5 V battery, sold individually. Replacement battery #357.
Spring Scale, Pull Type OB2153–OB2157
Balloons, Latex AP1900, etc.
Spring Scale, Pull Type, Ohaus AP8857 and OB2017
Catalog No.
Description
Price/Pkg.
AP1900
Balloons, Latex, Sphere, 12", 20/pkg.
$ 4.90
AP6420
Balloons, Latex, Sphere, 5", 50/pkg.
6.00
AP6937
Balloons, Latex, Long, 5" x 24", 50/pkg.
12.25
Catalog No.
Voltage
Size or Type
Price/Each
Price/Pkg.
AP9155
1.5
AAA (Alkaline)
$ 2.05
$56.10/30
AP1423
1.5
AA (Alkaline)
2.30
65.10/30
AP1424
1.5
C (Alkaline)
3.10
34.56/12
AP1425
1.5
D (Alkaline)
3.55
39.84/12
AP1429
6.0
Lantern General Purpose Battery, 6 V (Alkaline)
10.05
55.92/6
AP1430
9.0
Transistor Battery (Alkaline), 9V
5.65
42.40/8
Batteries AP9155, etc.
Batteries, Calculator-Type AP8714
Catalog No.
Description
Price/Each
AP8714
Batteries, Calculator-Type
$3.45
7 Sizes