This standard specifies the terms, definitions, classification, marking, requirements, test method, inspection rule, marking, packaging, transportation and storage of unused mineral and synthetic heat transfer fluids.
This standard is used for the heat transfer fluids of L-QB, L-QC and L-QD type and is primarily applicable to various indirect heat transfer system rather than being directly used for heating or cooling the chemicals with oxidation.
This standard is not applicable to the heat transfer fluids produced by recycling oil.
The vegetable/animal fat or the products processed by them may not be regarded as heat transfer fluids.
The L-QA product classified according to GB/T 7631.12 is not applicable to heat transfer fluid boiler.
This standard may involve some hazardous substances, operation and equipment, but doesn't purport to address all of the safety concerns, if any, associated with its use. Thus, prior to using this standard, users are responsible to establish suitable safety and protective measures and ensure the applicability of management system.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding amending errors in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of the normative document is applicable. For undated references, the latest edition of the normative document applies.
G/T 259 Petroleum Products - Determination of Water-soluble Acids and Alkalis
GB/T 261 Determination of Flash Point - Pensky-Martens Closed Cup Method (GB/T 261-2008, ISO 2719:2002, MOD)
GB/T 265 Petroleum Products - Determination of Kinematic Viscosity and Calculation of Dynamic Viscosity
GB/T 268 Petroleum Products; Determination of Carbon Residue; Conradson Method (GB/T 268-1987, neq ISO 6615:1983)
GB/T 388 Determination of Sulfur Content in Petroleum Products (Oxygen Bomb Method)
GB/T 508 Petroleum Products - Determination of Ash (GB/T 508-1985, neq ISO 6245:1982)
GB/T 1884 Crude Petroleum and Liquid Petroleum Products - Laboratory Determination of Density - Hydrometer Method(GB/T 1884-2000, eqv ISO 3675:1998)
GB/T 1885 Petroleum Measurement Tables (GB/T 1885-1998, eqv ISO 9l-2:1991)
GB/T 3078 Quality Structural Steel Cold Drawn Bars
GB/T 3535 Petroleum Products - Determination of Pour Point (GB/T 3535-2006, ISO 3016:1994, MOD)
GB/T 3536 Petroleum Products - Determination of Flash and Fire points - Cleveland Open Cup Method (GB/T 3536-2008, ISO 2592:2000, MOD)
GB/T 4756 Petroleum Liquids - Manual Sampling(GB/T 4756-1998, eqv ISO 3170:1988)
GB/T 4945 Standard Test Method for Acid and Base Number of Petroleum Products and Lubricants by-Color-Indicator Titration
GB/T 5096 Petroleum Products; Corrosiveness to copper; Copper Strip Test
