BS 939:1977 - Specification for engineers' squares (including cylindrical and block squares)

BS 939:1977

Specification for engineers' squares (including cylindrical and block squares)

Status : Revised, Superseded, Withdrawn   Published : September 1977 Replaced By : BS 939:2007

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Squares of try-square type in three grades of accuracy: AA, A, B; cylindrical squares in grade AA; solid form block squares in grades AA, A; open form block squares in grades A, B. Nomenclature, designation, sizes, material, manufacture, design, accuracy, marking, protection, testing.




Standard NumberBS 939:1977
TitleSpecification for engineers' squares (including cylindrical and block squares)
StatusRevised, Superseded, Withdrawn
Publication Date30 September 1977
Withdrawn Date31 October 2007
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Replaced ByBS 939:2007
Amended ByAMD 4239
Draft Superseded By74/77492 DC
DescriptorsSquares (instruments), Angular measurement, Dimensional measurement, Accuracy, Dimensions, Dimensional tolerances, Design, Flatness (surface), Smoothness (surface), Marking, Steels, Hardness, Roughness (surface), Test equipment, Precision, Blocks, Cylindrical shape
ICS17.040.30
Title in FrenchSpécification des équerres d'ingénieur (y compris les équerres cylindriques et en forme de bloc)
Title in GermanSpezifikation fuer rechte Anschlagwinkel fuer Ingenieure (einschliesslich von geraden, zylindrischen Staeben und rechteckigen Vierkanten)
CommitteeMTE/1
ISBN0 580 09626 2
PublisherBSI
FormatA4
DeliveryNo
Pages22
File Size515.7 KB
Price£134.00


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