GB 50185-1993工业设备及管道绝热工程 质量检验评定标准 英文版
1. General Provisions
1.0.1 This standard is established to unify the inspection and evaluation methods of the thermal-insulating engineering quality of industrial equipment and pipelines, strengthen the technical management of the enterprise and ensure the engineering quality.
1.0.2 This Standard is applicable to the inspection and assessment of the external thermal insulating engineering quality of the industrial equipment and pipelines with the media temperature greater than or equal to -196℃ and less than or equal to +850℃.
1.0.3 Main indicators and provisions in this standard are made according to the Code for Construction and Acceptance of Industrial Equipment and Pipeline Insulation Engineering (GBJ126-89) (hereinafter referred to as The Code).
1.0.4 Quality inspection work stated in this Standard shall be carried out in the construction process. The quality assessment work shall be carried out after the completion of the subdivisional work of the thermal insulation.
1.0.5 This Standard shall be applied combining with the current Unified Standard for Quality Inspection and Assessment of Industrial Erection Engineering.
1.0.6 The inspection and assessment of the thermal insulation engineering quality of the industrial equipment and pipelines shall meet relevant provisions in the current national standards besides this Standard.
2.0.1 Guarantee Items
Testing items that have dominating influences on the project security, functions of use and the project quality.
2.0.2 Elementary Items
Testing items that have important influences on the project security, functions of use and the project quality.
2.0.3 Deviation-permissible Items
Testing items that permit the existence of check points to be out of tolerance within the proportion range stated in this standard during the detection, but can also meet requirements on the project security and functions of use.
2.0.4 Repair Project
Projects that haven't been on the side of reworking and can meet requirements on the conformity after the repair.
2.0.5 Site Sampling Inspection
The sampling inspection carried out on the materials, semi-finished products of the materials or the thermal insulating structures that have been constructed.
2.0.6 Visual Check
The check to judge whether the checked objects have met provisions in the standard by the visual feeling of human and combining the practice.
2.0.7 Hand Check
Checks to find the fastness degree of the hooked nails, dowels and workpieces by breaking them off with fingers and thumbs.
2.0.8 Hammer Test
The test carried out to check the fastness degree between the welding positions of the backup pieces and other interconnecting pieces and the workpieces by the 0.25kg hand hammers' kicking.
2.0.9 Hand-power Check
The checks to make sure the compaction of the thermal insulating ropes and tapes that are enwound or packed by the hand power.
2.0.10 Needling Check
Checks by the straight needles with the length greater than the thickness of the thermal insulating layers to check the thickness of the heat insulating layers.
2.0.11 Stick Check
Checks to find out whether there is clearance in the filling thermal insulating layer according to the sound by the wood stick knocking the external protective layer.
2.0.12 Installation Volume Weight
The actual volume weight (kg/m3) after the construction of the thermal insulating layer.
2.0.13 Anti-settling Layer
The load-carrying members installed according to certain spacing and made from the hard thermal insulating products when the thermal insulating layers are filled on the vertical-type equipment or the vertical pipelines.
2.0.14 Inner Lining Thermal Insulating Layer
In the dismountable structures, the thermal insulating layer clinging to the metal protective shell.
2.0.15 Cold Condition
The physical conditions that the thermal insulation structures haven't been put into use.
2.0.16 Drying Shrinkage
The degree of the dimensional change of the viscous materials in the air without any action from the external force and due to the evaporation of water.
The physical property of the viscous materials that have their shapes changed but not fracture under the action of the external force and that can't be restored to the original shape when the external force is removed.