Chemical glassware
Transparent quartz glass
Crucible, bowl, beaker, flask, funnel, test tube and tip
ГОСТ 19908-90
Technical characteristics:
- Laboratory glassware is applied for working in acid and neutral substances at 1000oC temperature
- Tips are used for thermoelectric thermometers working at temperature up to 1000oC and also for submergence of thermoelectric thermometer at measuring liquid steel temperature during not more than 20 seconds.
- Products (except tips) are to be stable to crystallization at heating during 15 minutes at temperature of 1000+-20oC with subsequent cooling at 20+-5oC temperature
- Products are thermally stable. At heating temperature of 800±20оС (tips to temperature of 1000+-20o) with subsequent cooling in water at temperature not more than 20+-5oC products are not to give cracks and cuts after 20 heating shifts.
Crucible
Crucible is made of the following types:
В — high
Н — low
Capacity volume, ml | Height, mm | |
type В | type Н | |
10 | 30 | 21 |
20 | 40 | 26 |
40 | 50 | 32 |
50 | 53 | 36 |
80 | 63 | 40 |
100 | 67 | 45 |
Example: designation of crucible type B with 80 ml capacity volume
Crucible В-80 ГОСТ19908
Bowl characteristics
Capacity volume, ml | Height, mm |
20 | 25 |
40 | 28 |
50 | 32 |
80 | 36 |
100 | 40 |
160 | 45 |
200 | 50 |
Example: designation of 100 ml capacity volume bowl:
Bowl-100 ГОСТ 19908
Beaker is manufactured of the following types:
ВН — high with spout
ВБН -high without spout
НН — low with spout
НБН -low without spout
Capacity volume, ml | Height, mm | Capacity volume, ml | Height, mm | ||||
type ВН | type ВБН | type ВН | type ВБН | type НН | type НБН | type НН | type НБН |
50 | 71 | 50 | 63 | ||||
100 | 90 | 100 | 71 | ||||
200 | 110 | 200 | 90 | ||||
400 | 140 | 400 | 110 | ||||
800 | 180 | 800 | 140 | ||||
1000 | 190 | 1000 | 150 | ||||
1600 | 220 | 1600 | 180 |
Example: designation of ВБН type 800 ml capacity volume beaker:
Beaker ВБН-800 ГОСТ 19908
Flask is made of the following types:
КД — round bottom with long neck
КК — round bottom with short neck
Гр — pear-shaped
П — flat bottom
Кн — сonic
Capacity volume, ml | Height, mm | ||||
type КД | type КК | type Гр | type П | type Кн | |
50 | 120 | 75 | 180 | 90 | 80 |
100 | 150 | 95 | 210 | 110 | 100 |
200 | 190 | 120 | 250 | 140 | 125 |
400 | 240 | 150 | 300 | 180 | 160 |
800 | 300 | 190 | 360 | 220 | 200 |
1000 | 320 | 210 | 375 | 240 | 210 |
1600 | 380 | 240 | 420 | 280 | 250 |
Example: designation of 200 ml Кн type flask
Flask Кн-200 ГОСТ 19908
Funnel sizes
Diameter, mm | Height, mm |
36 | 63 |
45 | 80 |
56 | 100 |
71 | 125 |
90 | 160 |
110 | 200 |
Example: designation of funnel with outer diameter of 45 mm:
Funnel: 45 ГОСТ 19908
Test tube characteristics:
Capacity volume, ml | Height, mm |
6 | 120 |
10 | 150 |
20 | 190 |
45 | 240 |
90 | 300 |
145 | |
240 | |
370 |
Example: designation of 90 ml test tube
Test tube-90 ГОСТ 19908
Tip characteristics:
Length, mm | Outer diameter, мм | Thickness, mm |
100 | 9.0±0.5 | 1.2±0.3 |
200 |
Example: designation of 100 mm length tip:
Tip-100 ГОСТ 19908
