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GB 11946-2013: Thermally toughened safety glass for ships
Status: Valid GB 11946: Evolution and historical versions
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PDF similar to GB 11946-2013
Basic data | Standard ID | GB 11946-2013 (GB11946-2013) | | Description (Translated English) | Thermally toughened safety glass for ships | | Sector / Industry | National Standard | | Classification of Chinese Standard | Q34 | | Classification of International Standard | 81.040 | | Word Count Estimation | 13,136 | | Older Standard (superseded by this standard) | GB 11946-2001 | | Quoted Standard | GB/T 1216; GB/T 3385; GB/T 5137.2-2002; GB/T 5746; GB/T 8170; GB/T 9056; GB 11614-2009; GB/T 14413; GB 15763.2-2005; JB/T 2369 | | Adopted Standard | ISO 21005-2004, NEQ | | Regulation (derived from) | National Standards Bulletin 2013 No. 10 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the terms and definitions made ??by the heat treatment process for marine toughened safety glass, classification, materials, requirements, test methods, inspection rules, marking, packaging, transport and storage. This standard app | GB 11946-2013: Thermally toughened safety glass for ships---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Thermally toughened safety glass for ships
ICS 81.040
Q34
National Standards of People's Republic of China
Replacing GB 11946-2001
Marine tempered safety glass
(ISO 21005.2004, Shipsandmarinetechnology-Thermalytoughened
safety-glasspanesforwindowsandsidescuttles, NEQ)
Issued on. 2013-07-19
2014-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
6.6,6.7,6.8,6.9 this standard are mandatory, the rest are recommended.
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB 11946-2001 "Marine toughened safety glass", compared with GB 11946-2001 main technical differences are.
--- Abolition of the "use by" and "according to the processing status" category, an increase of "by product shape" category (see 42, 2001 version 3.2.);
--- Increased material requirements (see Chapter 5);
--- Appearance mass, with "point-like defects" instead of the "bubble"; increase the "point-like defect density" requirements, revised the "critical edge" missing
Notch allows the number (see 61, 2001 version 4.1.);
--- Size deviation, the cancellation and increased deviation rectangular window glass portion size requirements and revised the applicable product category
Type; modified 19mm thick glass porthole requirements for the thickness deviation ± 0.7mm; increased deviation from the other size requirements
Supply and demand of the agreed provisions; adds other dimensions thickness deviation requirements (see 62, 2001 version 4.2.);
--- Edge processing, the abolition of the "chamfer width" requirements, modify the requirements "Setback" (see 63, 2001 version 4.3.);
--- Increasing the provision of marine tempered safety glass parallelism (see 6.4);
--- Curvature, the curvature of the unity of all marine glass thickness requirement of 0.2 per cent (see 65, 2001 version 4.4.);
--- Optical distortion, increasing the "inner edge portion of the range of 25mm makes inspection requirements" requirement (see 68, 2001 version 4.7.);
--- Increased the marine tempered glass surface stress requirements (see 6.9).
This standard and ISO 21005.2004 "Ships and marine technology porthole windows and toughened safety glass" non-equivalent.
The standard proposed by China Building Materials Federation.
The industry standard by the National Standardization Technical Committee special glass and glass (SAC/TC447) centralized.
This standard is drafted by. China Building Material Test Certification Center, Beijing, Jiangyin Cheng Glass Co., Ltd., Beijing Tong-hui Technology Trimaran
Limited.
Participated in the drafting of this standard. Industrial Technology Qinhuangdao Yaohua Glass Co., Ltd., Qinhuangdao City harbor area Yuehua industrial technology glass,
Yixing City Yushi Special Glass Co., Ltd., Hangzhou Qiantang River Special Glass Technology Co., Ltd.
The main drafters of this standard. Wang Rui, Wu Huiting Chen Jun law, Zhao Qin, Ma Jun, Li Qiang, in the Great Seal, flat cedar war, Wang Geng, left Xia Hui, Du Dayan,
Ji package.
This standard replaces the standards previously issued as follows.
--- GB 11946-2001.
Marine tempered safety glass
1 Scope
This standard specifies the terms and definitions made by the heat treatment process for marine tempered safety glass, classification, materials, requirements, test methods,
Inspection rules, marking, packaging, transportation and storage.
This standard applies to marine glass rectangular windows and portholes. For other uses of marine toughened safety glass, reference may be based on characteristics of their products
Use of this standard.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 1216 outside micrometer
GB/T 3385 marine scuttles and rectangular windows toughened safety glass of non-destructive strength testing stamping method
GB/T 5137.2-2002 Test methods for automotive safety glass - Part 2. Optical Performance Test
GB/T 5746 Marine ordinary rectangular windows
GB/T 8170 repair value expressed about the rules and limit values and judgment
GB/T 9056 metal ruler
GB 11614-2009 flat glass
GB/T 14413 Ship porthole
GB 15763.2-2005 architectural safety glass - Part 2. Tempered glass
JB/T 2369 reading microscope
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Point-like defects spotfaults
Collectively, bubbles, inclusions, spots and other defects.
[GB 11614-2009, the definition 3.2]
Category 4
According to shape into a rectangular window toughened safety glass and toughened safety glass portholes.
5 material
Production of the original sheet of flat glass marine toughened safety glass used in the first-class goods shall conform to the requirements of GB 11614-2009. Its use
His glass, its quality should be consistent with the corresponding product standards.
6 Requirements
6.1 appearance quality
Appearance quality marine tempered safety glass shall comply with the requirements of Table 1.
Table 1 Appearance quality
Defects name
Quality requirements
Description Allows the number of defects
Point-like defects
0.3mm≤ size ≤0.5mm 2 × S
Size of > 0.5mm allowed to exist
Point-like defect density
Point-like defect size ≥0.3mm minimum distance not less than 200mm; any one of the inner circle diameter 50mm Dimensions
≥0.1mm point-like defects is not more than 2
Scratch width ≤0.1mm; length ≤40mm 2 × S
Explosion edge
Allow per meter on a side having a length of not more than 10mm, since the glass edge to the glass table
Surface extends deeper than 2mm, since the thickness of the glass plate for extending not more than 1/3
Critical edge
Stones, cracking, chipping allowed to exist
Note. S is the area in square glass plate as a unit of value, according to GB/T 8170 rounding, to two decimal places. The number of defects for the coefficient S
The value obtained by multiplying, according to GB/T 8170 rounded to integer.
6.2 Dimensions and tolerances
6.2.1 rectangular window toughened safety glass length and width and thickness shall be as defined in Figure 1 and Table 2.
Explanation.
w --- width of the glass;
h --- length glass;
t --- nominal thickness of the glass;
r --- glass fillet radius.
1 rectangular window toughened safety glass
Table 2 rectangular window toughened safety glass size and thickness deviation in millimeters
Nominal size
(W1 × h1)
whrt
Minimum Maximum Minimum Maximum 8 ± 0.3 10 ± 0.3 12 ± 0.3 15 ± 0.5
400 × 560 414 418 574 578 58 F - E -
450 × 630 464 468 644 648 108 F - E -
500 × 710 514 518 724 728 108 - F - E
560 × 800 574 578 814 818 108 - F - E
Other sizes w1 14 w1 18 h1 14 h1 18 - - - - -
Note. The nominal size w1 × h1 for the dimensions of the rectangular window transparent portion, E, F, respectively, corresponding to GB/T 5746 in heavy rectangular window (E-type), light rectangular windows
(F-type).
Diameter and thickness of tempered safety glass portholes 6.2.2 shall comply with Figure 2 and Table 3.
Explanation.
d --- glass diameter;
t --- nominal thickness glass.
Figure 2 portholes tempered safety glass
Table 3 portholes tempered safety glass diameter and thickness deviation in millimeters
Nominal diameter
The thickness t diameter d
Least
diameter
maximum
diameter
6 ± 0.2 8 ± 0.3 10 ± 0.3 12 ± 0.3 15 ± 0.5 19 ± 0.7
200 213 215 CB - AA -
250 263 265 CCB - - -
300 316 319 BA - - - -
350 366 369 CCBABA
400 416 419 - CB - - -
450 466 469 - - - - - -
Note. The nominal diameter of the transparent part of the porthole diameter, A, B, C, respectively, corresponding to GB/T 14413 in heavy portholes (A type), medium-sized portholes (B type), light side
Window (C type).
6.2.3 Other Sizes
Tables 2 and 3 are not included in the size, the size of deviation agreed by both parties.
Thickness deviation should be consistent with the provisions in Table 3.
6.3 Edge processing
Glass should be finely ground and chamfered edge (see Figure 3), Setback to comply with Table 4.
Explanation.
t --- nominal thickness of the glass;
y --- Setback.
Figure 3 Side Process schematic
Table 4 Setback in millimeters
Setback glass thickness t y
6 8 10 ≤1.5
12 15 19 ≤2.0
6.4 Parallelism
Glass sides are parallel should not exceed 0.03%.
6.5 curvature
Curvature should not exceed 0.2%.
6.6 Stamping strength
It should not be damaged and broken glass.
6.7 visible light transmittance
Marine tempered safety glass visible light transmittance to comply with Table 5.
Table 5 light transmittance
Parts of the visible light transmittance
Cab, observation room ≥70%
Other supply and demand sides agreed
6.8 Optical distortion
Marine tempered safety glass optical distortion shall be in accordance with Table 6.
Table 6 optical distortion
Parts of the optical distortion/( ')
Cab, observation room ≤2
Other supply and demand sides agreed
Note. Regional do test requirements within the article edge 25mm range.
6.9 surface stress
Marine surface stress toughened safety glass should not be less than 90MPa.
7 Test methods
7.1 appearance quality
In a sample of products, under good natural light scattering and light conditions, away from the sample surface at a 600mm visual inspection. use
In line with JB/T 2369 provisions ruled reading microscope measurement point-like defects and scratches the maximum size of the width is 0.01mm. Make
The indexing in line with GB/T 9056 provisions is 1mm metal ruler to measure the minimum distance between two o'clock like defects, scratches and burst side length.
7.2 Dimensions and tolerances
In the article is a sample. Length, width and diameter of the glass using the minimum scale value of 1mm, in line with GB/T 9056 provisions steel ruler
Or in compliance with the provisions of the steel tape measure. Found with the nominal size of the difference is the size of the deviation.
Thickness conforming outside micrometer or above and have the same measuring accuracy of GB/T 1216 provisions into the center of the four sides of the glass plate
Line measurements, the mean value, the value after rounding to one decimal place. Found nominal thickness is the difference between the thickness deviation.
Chamfered edges Steel ruler measuring compliance with GB/T 9056 regulations.
7.3 Parallelism
Micrometer or conforming with this same precision instruments to measure the thickness of the glass sides of the midpoint of the foreign economic one thousand GB/T 1216 provisions (see
Figure 4), tempered safety glass portholes in every 1/4 weeks strengths of the measuring point (see Figure 5). Rectangular window toughened safety glass with a relative degree of parallelism results
Divided by the difference between the maximum thickness of the edge adjacent Collage long representation of the results, see equation (1). Tempered safety glass portholes parallelism results with two relatively thick
Divided by the difference between the maximum diameter of the representation of the results, see formula (2).
4 rectangular window toughened safety glass parallelism schematic
P = max | t1-t3 | h
, | T2-t4 | æ
(1)
Where.
P --- parallelism;
t1, t2, t3, t4 --- four sides midpoint thickness in millimeters (mm);
w, h --- side length, in millimeters (mm).
5 tempered safety glass portholes parallelism schematic
P = max | t1-t3 | d
, | T2-t4 | æ
(2)
Where.
P --- parallelism;
t1, t2, t3, t4 --- every 1/4 weeks strengths thickness in millimeters (mm);
D --- diameter, in millimeters (mm).
7.4 curvature
In the article is a sample. The sample stand up vertically, with a foot or wire level has been close to both sides or the diagonal direction of the article, measured with a feeler
The amount of straight edge and the gap between the glass and the percentage ratio of the length of the height of the arc and the chord is represented curvature [see Figure 6 and the formula (3)].
6 curvature schematic diagram
C = hl × 100%
(3)
Where.
C --- curvature, as a percentage (%) indicates;
H --- arc height, in millimeters (mm);
--- chord length L, in millimeters (mm).
7.5 Stamping strength
In article as a sample, take four samples tested. Test methods and procedures according to GB/T 3385 carried out.
7.6 visible light transmittance
In article as a sample, take three samples tested. Test methods and procedures carried out in accordance with GB/T 5137.2-2002 Chapter 4.
7.7 Optical distortion
In article as a sample, take four samples tested. Test methods and procedures carried out in accordance with GB/T 5137.2-2002 Chapter 6.
7.8 surface stress
In article as a sample, take three samples tested. Test method and steps in accordance with GB 15763.2-2005 6.8.
8 Inspection Rules
8.1 Inspection classification
Inspection is divided into the factory inspection and type testing.
8.2 Test Project
Marine tempered safety glass inspection items, requirements and test methods shall be in accordance with Table 7.
Table 7 test items, requirements and test methods
Project type test factory inspection
Claim
Steel rectangular window
Safety glass
Steel portholes
Safety glass
experiment method
Appearance quality √ √ 6.1 6.1 7.1
Dimensions and tolerances √ √ 6.2.1 6.2.2 7.2
Table 7 (continued)
Project type test factory inspection
Claim
Steel rectangular window
Safety glass
Steel portholes
Safety glass
experiment method
Edge Processing √ √ 6.3 6.3 7.2
Parallelism - √ 6.4 6.4 7.3
Curvature √ √ 6.5 6.5 7.4
Punching strength - √ 6.6 6.6 7.5
Visible light transmittance - √ 6.7 6.7 7.6
Optical distortion - √ 6.8 6.8 7.7
Surface stress - √ 6.9 6.9 7.8
NOTE. √ expressed the need for detection. - means no items seized.
8.3 factory inspection
8.3.1 Test items
Factory inspection items are shown in Table 7.
8.3.2 Sampling Method
Marine tempered safety glass factory inspection sampling plan shall comply with the requirements in Table 8. When the batch quantities greater than 500, per
500 1 batch batch extract samples. When the test items for non-destructive testing is available to detect it continues to other projects.
Table 8 sampling plan for the unit block
Bulk sample size range unqualified acceptance number to determine the number
1 to 8201
9 ~ 15301
16 to 25,512
26 ~ 50823
51 to 901 334
91 ~ 1502056
151 ~ 2803278
281 to 500,501,011
8.3.3 determination
8.3.3.1 individual judgment
Such as the appearance of quality, dimensions and tolerances, number of rejects edge processing, curvature greater than or equal Table 8 failed to determine the number, recognize
The quality of the batch for the appearance, size and tolerances, edge processing or curvature failed.
8.3.3.2 total judgment
Appearance quality, dimensions and tolerances, edge processing, bending meet the requirements, then consider the product factory inspection, otherwise not
qualified.
8.4 Type inspection
8.4.1 General
When one of the following conditions, type of inspection should be carried out.
--- New products or old products to the plant production trial to identify stereotypes;
--- After the trial production, such as structure, materials, technology has drastically changed, it may affect product performance;
--- Normal production at least 1 year;
--- Product discontinuation more than six months, the production recovery;
--- Test results are quite different when the last type inspection.
8.4.2 Test items
Type test items are shown in Table 7.
8.4.3 Sampling Method
8.4.3.1 appearance quality, dimensions and tolerances, edge processing, bending
With 8.3.2.
8.4.3.2 Parallelism
In the same thicknesses, the same kind of technology as a group, randomly selected from a batch of products tested. When the batch quantities greater than 500
When, every 500 to 1 batch batch extract samples.
8.4.3.3 punching strength, light transmittance, optical distortion, surface stress
According to the number of test items required from the batch of products at random.
8.4.4 determination
8.4.4.1 appearance quality, dimensions and tolerances, edge processing, bending
With 8.3.3.1.
8.4.4.2 Parallelism
All samples meet the requirements for qualified, otherwise unqualified.
8.4.4.3 punching strength
All samples meet the requirements for qualified, when the two samples do not meet, for the failure; when a specimen is not met, then an additional four test
Thus, to meet all the requirements for the qualification.
8.4.4.4 visible light transmittance, optical distortion, surface stress
All samples meet the requirements for qualified, otherwise the project failed.
8.4.5.5 total judgment
If the performance is satisfactory, considered qualified product type test, otherwise unqualified.
9 signs, packaging, transportation and storage
9.1 mark
Marine toughened safety glass body on signs shall comply with GB/T 3385 requirements.
9.2 Packaging
Glass packaging should adopt wooden box or container (rack) packaging, box (frame) should be easy handling, transportation. Each box (frame) should be installed in the same thickness, feet
Inch glass. Between the glass and the glass should be taken between the glass and the box (frame) protective measures to prevent scratches and damage the glass surface of the glass.
Packaging and marking shall comply with the relevant national standards, each container should be marked with the product name, the glass thickness, type, production plant, the site
And registered trademarks, and printed with "up, put a positive light to move carefully broken, fear of wet rain" and other words or signs. Each package should co-product testing
Grid certificate.
9.3 Transport
Transport, the glass should be fixed firmly to prevent sliding dumping measures should be rain.
9.4 Storage
The product should be stored in a place there is rain facilities.
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