8. British Standard 2495:1977 as amended by the following Amendment Slips—
| Number | Date of Publication |
|---|---|
| 1 | 30th September 1977 |
| 2 | 31st August 1978 |
| 3 | 31st August 1979 |
| 4 | 29th February 1980 |
8. British Standard 2495:1977 as amended by the following Amendment Slips—
| Number | Date of Publication |
|---|---|
| 1 | 30th September 1977 |
| 2 | 31st August 1978 |
| 3 | 31st August 1979 |
| 4 | 29th February 1980 |