Triple Cylinder

How to determine significant figures while measuring with lab equipment?

How do you know how much significant figures are in the following laboratory equipments?

Or, how many significant figures are needed behind the decimal place? It's thrown me off in chemistry class.

1. Triple beam balance
2. Graduated cylinder
3. Thermometer

A good idea is not read between lines. So the significant figures cannot exceed the resolution (min detectable change versus the value itself. If you measure period of a pendulum as 3.04 sec with a stop watch which can show changes in time only as little as 0.01 sec, then the 3.04 is interpreted as 3.04+/- 0.005 sec. The ratio is 608. Thus frequency = 1/T can be having a significance of only same amount. The inverse is 0.328947, but 1/608 of this is 0.00054. Thus The frequency is
.3289+/- 0.0005. If period had been 0.33sec, interpret it as 0.33+/- 0.005 and ratio being 66, the frequency can be calculated to a significant value of only 3.0303/66 = 0.045. Inverse of 0.33 is 3.0303. So frequency can be expressed as 3.03+/- 0.045.
If thermometer has a graduation of 0.5deg, the significance is limited to indicated temperature
+/- 0.25 deg, (half of min detectable change..). If cylinder reads 3.2 litres and is graduated to 0.1 litre, the value readout is whatever it is +/- 0.05 litre.

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1992 POLARIS INDY 650 TRIPLE CYLINDER HEAD LEFT
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1992 POLARIS INDY 650 TRIPLE CYLINDER HEAD CENTER
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89 1989 Polaris 650 Indy Triple Cylinder Head Coolant Rail Line Manifold
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89 1989 Polaris 650 Indy Triple Cylinder Head 3 Available
89 1989 Polaris 650 Indy Triple Cylinder Head 3 Available
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ARCTIC CAT 1998 ZRT 600 CYLINDER HEADS 1995 1996 1997 1999 2000 TRIPLE TOURING
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97 Polaris XLT 600 Triple Cylinder Head PH
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97 Polaris XLT 600 Triple Cylinders Y2
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Arctic Cat Thundercat 900 Triple Right Cylinder Head
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Arctic Cat Thundercat 900 Triple Left Cylinder Head
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Arctic Cat Thundercat 900 Triple Center Cylinder Head
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Arctic Cat ZRT800 Triple Left Cylinder Head ZRT 800
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Arctic Cat ZRT800 Triple Center Cylinder Head ZRT 800
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Arctic Cat Cylinder 2001 ZRT 600 Triple Touring 600 New 3005 786
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1998 Arctic Cat ZRT 600 Motor Engine Cylinder Head Used Clean Spark Plug Triple
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Mach Z 800 Triple Skidoo Cylinder
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Polaris XLT XCR 600 Piston kit TRIPLE CYLINDER 1995 2000
Polaris XLT XCR 600 Piston kit TRIPLE CYLINDER 1995 2000
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1998 2002 Arctic Cat Thundercat 1000 Triple Cylinder Jug 81mm Bore 41
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95 00 Arctic Cat ZRT 600 Triple Touring Snowmobile Cylinder Head ZRT600 4
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95 00 Arctic Cat ZRT 600 Triple Touring Snowmobile Cylinder Head ZRT600 8
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Formula 3 700 Triple Skidoo Cylinder
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Polaris Snowmobile 1990 93 Indy 650 RXL Triple Cylinder Base Gasket OEM 3084041
Polaris Snowmobile 1990 93 Indy 650 RXL Triple Cylinder Base Gasket OEM 3084041
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Arctic Cat 1993 1997 Thundercat 900 Cylinder Head Triple New 3004 076
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