This standard specifies the detailed classification of products in group Q (heat transfer fluids) in class L (lubricants and related products). It is part of GB7631.
GB/T 7631.12-1994 history
2014GB/T 7631.12-2014 Lubricants, industrial oils and related products (class L).Classification.Part 12:Family Q(Heat transfer fluids)
1994GB/T 7631.12-1994 Lubricants and related products (class L)--Classification--Part 12: Family Q (heat transfer fluid)