Usage:
pressurization of acid batteries.Technical features:
| 1 |
Appearance |
homogeneous mass of black color |
| 2 |
Softening temperature by the method of "Rings and balls", 0 < / span> C, not lower |
90 |
| 3 |
Depth of penetration of a needle of 0,1 mm at 25 ° C, mm, not less: - EP-10 |
45 |
| - BR-20 |
35 |
|
| 4 |
Water absorption for 24.0 ± 0.1 hours,% by weight not more |
1,0 |
| 5 |
Heat resistance, at a temperature not lower than 60 ° C, within, not less than 2 h. |
there should be no swellings and traces of movement of cover structure |