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GB/T 36372-2018 (GB/T36372-2018)

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GB/T 36372-2018: PDF in English (GBT 36372-2018)
GB/T 36372-2018
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 13.040.35
C 70
Cleanrooms and associated controlled environments -
General technical requirements
of combined envelope structure
洁净室及相关受控环境
ISSUED ON. JUNE 7, 2018
IMPLEMENTED ON. OCTOBER 1, 2018
Issued by. State Administration for Market Regulation;
Standardization Administration Committee.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 5 
4 Technical requirements ... 6 
5 Testing methods ... 10 
Cleanrooms and associated controlled environments -
General technical requirements
of combined envelope structure
1 Scope
This Standard specifies technical requirements and testing methods for
combined envelope structure of cleanrooms and associated controlled
environments.
This Standard is applicable to the combined envelope structure not higher than
4m in cleanrooms and associated controlled environments.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 228.1, Metallic materials - Tensile testing - Part 1. Method of test at
room temperature
GB/T 232, Metallic materials - Bend test
GB/T 2423.3, Basic environmental testing procedures for electric and
electronic products - Test Ca. Damp heat, steady state
GB/T 2423.22, Environmental testing - Part 2. Tests methods - Test N.
Change of temperature
GB/T 7314, Metallic materials - Compression test method at room
temperature
GB/T 8478, Aluminum Windows and Doors
GB 8624-2012, Classification for burning behavior of building materials and
products
GB/T 14522, Artificial weathering test method for plastics, coating and rubber
materials used for machinery industrial products - Fluorescent UV lamps
Component tip slope - -15’
Surface - Smooth and flat, uniform color, no obvious scratches
4.3 Interior panel
4.3.1 Meet the requirements of GB/T 29468.
4.3.2 Shall be cement, gypsum panel, metal or resin sheet, etc. The interior
panel shall be of non-combustible materials with a non-combustible
performance of at least grade B1 and shall comply with the requirements of
GB/T 29468.
4.3.3 The surface shall not produce cold bridges and condensation during use.
The heat transfer coefficient shall meet the requirements of GB/T 29468.
4.3.4 The surface shall be resistant to weak acid and alkali corrosion. After
being treated by the test method of 5.4.2, the surface of the interior panel shall
be intact, no discoloration, no obvious damage.
4.3.5 Can withstand the cleaning agents and disinfectants recommended by
the manufacturer. After cleaning and disinfection, the surface of the interior
panel shall be intact, no discoloration, no obvious damage.
4.3.6 Can be applied in a certain humidity environment. After treatment
according to the test method of 5.4.4, the surface of the interior panel shall be
intact, no discoloration, no obvious damage.
4.3.7 Can adapt to high and low temperature environment. After treatment
according to the test method of 5.4.5, the surface of the interior panel shall be
intact, no discoloration, no obvious damage.
4.3.8 Have a certain resistance to ultraviolet radiation. After treatment according
to the test method of 5.4.6, the surface of the interior panel shall be intact, no
discoloration, no obvious damage.
4.3.9 Have a certain impact resistance. After treatment according to the test
method of 5.4.7, the surface of the interior panel shall be intact, no discoloration,
no obvious damage.
4.4 Connectors and adapters
4.4.1 Adapters and connectors for enclosures shall have sufficient reliability and
bearing capacity.
4.4.2 The junction between the wall and the roof, between the walls, between
the tops shall have a reasonable structure to ensure the seal and prevent cracks.
bonding according to the methods specified in 12.8.10 and 12.9 of JGJ 16-2008.
4.8 Grounding
The metal frame, wire and pipe, gas pipe and metal junction box of the
distribution decoration in the clean room area of the combined maintenance
structure shall be grounded. Grounding resistance shall be less than or equal
to 4Ω.
4.9 Antistatic performance
Exposed parts of the envelope structure that may be subjected to impact are
not suitable to use aluminum, magnesium, titanium and their alloys because it
generates a frictional spark when it is subjected to an impact, and it is possible
to ignite a combustible gas mixture.
5 Testing methods
5.1 Inspection of basic requirements
5.1.1 Inspection of building area, envelope structure, interface cuts, and device
position shall be carried out according to visual inspection, magnifying glass or
straight steel ruler, Vernier caliper, etc.
5.1.2 Air quality is inspected in accordance with GB/T 18883 and GB/T 25915.3.
5.2 Frame performances
5.2.1 The tensile strength inspection is carried out according to GB/T 228.1.
5.2.2 The inspection of compressive strength is carried out according to GB/T
7314.
5.2.3 The inspection of bending strength is carried out according to GB/T 232.
5.2.4 The deformation of the frame component is carried out according to GB/T
8478.
5.2.5 Frame appearance quality
In the case of bright light, visually observe it, if necessary, use a magnifying
glass to view. Observe that the surface of the frame is flat, clean, uniform in
color, and record the observed defects.
5.3 Size deviation
5.3.1 Measuring tools
Steel tape Precision of 1mm
5.4.7 Interior panel impact resistance
5.4.7.1 Sample
The sample is prepared in the same processing process as the product material,
or the test piece of 610mm×610mm is directly cut out from the product, and the
quantity is 3 pieces.
5.4.7.2 Test devices
The test devices include a device capable of freely dropping the steel ball from
a prescribed height, or a ball throwing device capable of generating a ball
equivalent to a free fall and a sample holder. The sample holder meets the
requirements specified in Annex B of GB/T 15763.3-2009.
5.4.7.3 Steel ball
The steel ball shall meet the requirements of GB/T 308, the mass is (500±5)g,
and the diameter is (50±1)mm.
5.4.7.4 Test procedures
The impact resistance test of the interior panel shall be carried out as follows.
a) before the test, the sample shall be placed at a temperature of (20±5)°C,
a relative humidity of 40%~60% for at least 4h;
b) place the sample on the sample holder; the impact surface of the sample
shall be perpendicular to the incident method of the steel ball; the
tolerance is within 3°;
c) place the steel ball at a height of 500mm from the surface of the sample;
the impact point after free fall is at the center of the geometric center of
the sample, and the radius is 25mm; observe whether the three samples
meet the requirements of 4.3.9; it shall be determined as unqualified as
long as one fail.
5.5 Seal
5.5.1 Smoke detection shall be used to detect sealing. Establish a pressure
difference of not less than 25Pa inside and outside the tested part by air supply
or exhaust. At the interface between the pipeline, the line and the enclosure, a
visual flow field is generated by an artificial smoke source (such as a smoke
pipe, a water mist oscillator, etc.), and the rigor of the detected position is
determined according to the direction of the smoke flow. If the smoke does not
flow from a high pressure to a low pressure, but is naturally floating, the seal is
considered to meet the requirements.
......
 
(Above excerpt was released on 2018-08-10, modified on 2021-06-07, translated/reviewed by: Wayne Zheng et al.)
Source: https://www.chinesestandard.net/PDF.aspx/GBT36372-2018