B
OROSILICATE
G
LASS
10
TEST TUBES
Physical Properties
Composition
Coefficient of expansion 33 x 10
-7
SiO
2
81
(20-300°C)
AI
2
O
3
2
Density
2.23 B
2
O
3
13
Softening point
825°C Na
2
O 4
Annealing point
560°C K
2
O
Working point
1260°C
TEST TUBES SAMCO ‘33’
SAMCOborosilicate test tubes are suitable for all
usual laboratory applications. Theywill withstand
temperature change up to and including boiling of
samples. They are also highly chemically resistant.
Tolerances are as specified in ISO4142:2002 (Table 2).
Test Tubes
Mediumwall with rim
Code
Size
Wall thickness Quantity
mm
mm
per pack
G030/01
75 x 10 1.0
100
G030/02
75 x 12 1.0
100
G030/03
100 x 12 1.0
100
G030/04
100 x 16 1.2
100
G030/05
125 x 16 1.2
100
G030/06
150 x 16 1.2
100
G030/08
150 x 18 1.2
100
G030/09
180 x 18 1.2
50
G030/10
150 x 24 1.2
50
Test Tubes
Mediumwall rimless
Code
Size
Wall thickness Quantity
mm
mm
per pack
G031/01
75 x 10 1.0
100
G031/02
75 x 12 1.0
100
G031/03
100 x 12 1.0
100
G031/04
100 x 16 1.2
100
G031/05
125 x 16 1.2
100
G031/06
150 x 16 1.2
100
G031/08
150 x 18 1.2
100
G031/09
180 x 18 1.2
50
G031/10
150 x 24 1.2
50
Test Tubes
Heavywall with rim
Code
Size
Wall thickness Quantity
mm
mm
per pack
G032/01
75 x 10 1.5
100
G032/02
75 x 12 1.5
100
G032/03
100 x 12 1.5
100
G032/05
125 x 16 1.8
100
G032/06
150 x 16 1.8
100
G032/08
150 x 18 1.8
100
G032/10
150 x 24 1.8
50
Test Tubes
Heavywall rimless
Code
Size
Wall thickness Quantity
mm
mm
per pack
G033/01
75 x 10 1.5
100
G033/02
75 x 12 1.5
100
G033/03
100 x 12 1.5
100
G033/05
125 x 16 1.8
100
G033/06
150 x 16 1.8
100
G033/08
150 x 18 1.8
100
G033/10
150 x 24 1.8
50
}
