A multi-purpose recording pH-meter
โ Scribed by Pietro Lanza
- Publisher
- Elsevier Science
- Year
- 1967
- Weight
- 650 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0022-0728
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
To meet the needs of safety and rescue workers, the portable and convertible SK.7 and SK.5 multipurpose tools have been developed. They can be used in turn as a spade, pick and hoe, and then with the blade of the spade withdrawn, as a pick, axe and shear (model SK.5) together with nail pliers and a
Having had to make, in the course oยฃ the year, a great number of experiments in pumping water fi]tered through sand under various prearranged conditions, in quantities ranging from little more than one gallon in an hour to eight or ten gallons in a minute, the writer soon found tDat all commercial w