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sklademVydáno: 1978-06-30
BS 3145:1978
Specification for laboratory pH meters
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| Označení normy: | BS 3145:1978 |
| Počet stran: | 14 |
| Vydáno: | 1978-06-30 |
| ISBN: | 0 580 10009 X |
| Status: | Standard |
DESCRIPTION
BS 3145:1978
This standard BS 3145:1978 Specification for laboratory pH meters is classified in these ICS categories:
- 71.040.10 Chemical laboratories. Laboratory equipment
This British Standard specifies requirements for pH meters for laboratory use.
Covers instruments having moving index, digital, binary coded decimal and recorded outputs. Specifies the scale, maximum permitted overall error and errors arising from 12 sources, electrode input sockets, temperature compensating devices, adjustment controls, and information to be provided by the manufacturer. Test methods for assessing electrical performance.