標準號：IS 12843-1989
發布日期：1990/5/1 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：1.1 This standard covers tolerances on erection of steel structures of Groups B and C categories as defined in the foreword.1.2 Subject to the provisions of 1.3 and unless otherwise specified in approved drawings/speci-fications, or specified by the owner, the devia-tions from true position in the erected steel structures shall not exceed the tolerances specified in this standard.1.3 The tolerances specified in this standard do not apply to steel structures where the devia-tions from true positions are intimately linked with and directly influence the technological process. In such cases the tolerances on erected steel structures shall be as per recommendations of process technologists/suppliers.