| Standard Number | BS 906-2:1972 |
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| Title | Specification for engineers' parallels. Imperial units |
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| Abstract | Seven sizes of Grade A parallels with cross section ¼ in x ½ in to 1½ in x 3 in and nine of Grade B parallels with cross sections ¼ in x ½ in to 2 in x 4 in. Material, standard sizes, finish, accuracy, protection and marking. |
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| Status | Confirmed, Current |
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| Publication Date | 16 June 1972 |
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| Confirm Date | 01 February 2012 |
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| Cross References | BS 860, BS 891:Part 1, BS 906:Part 1, BS 1133:Section 6 |
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| Replaces | Replaces BS 906:1940. |
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| Descriptors | Engineers parallels, Imperial system, Dimensional measurement, Accuracy, Marking, Dimensions, Dimensional tolerances, Steels, Hardness, Grades (quality), Precision |
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| ICS | 17.040.30 (Measuring instruments)
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| Title in French | Calibres d'epaisseur. Unites imperiales |
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| Title in German | Technische Parallellineale. Spezifikation. Englische Einheiten |
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| Committee | TDW/4 |
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| ISBN | 0 580 07043 3 |
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| Format | A4 |
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| Delivery | YES |
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| Pages | 12 |
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| Price | £ 82.00 |
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