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   <subfield code="a">H. :</subfield>
   <subfield code="b">Ủy ban khoa học kỹ thuật nhà nước ,</subfield>
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   <subfield code="a">Tiêu chuẩn này áp dụng cho công việc hàn điện trong tất cả các ngành kinh tế quốc dân và quy định những yêu cầu chung về an toàn trong quá trình hàn điện.</subfield>
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   <subfield code="a">-Công việc hàn điện có thể tổ chức cố định trong các xưởng, phân xưởng, khu vực chuyên hàn, ở các bải ngoài trời, hoặc có thể tổ chức tạm thời ngay trong những ngôi nhà đã xây dựng xong hoặc xây dở dang, ở các công trình kiến trúc, các trạm thiết bị trong phạm vi xí nghiệp với mục đích sửa chữa thiết bị cũng như lắp ráp các kết cấu xây dựng và kết cấu khác.</subfield>
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