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GB 16757-2016: Protective clothing -- X-ray protective clothing
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PDF similar to GB 16757-2016
Basic data | Standard ID | GB 16757-2016 (GB16757-2016) | | Description (Translated English) | Protective clothing -- X-ray protective clothing | | Sector / Industry | National Standard | | Classification of Chinese Standard | C73 | | Classification of International Standard | 13.340.10 | | Word Count Estimation | 19,179 | | Date of Issue | 2016-02-24 | | Date of Implementation | 2017-03-01 | | Older Standard (superseded by this standard) | GB 16757-1997 | | Quoted Standard | GB/T 528; GB/T 529; GB/T 531.1; GB/T 1040.3; GB/T 2411; GB/T 3917.3; GB/T 3923.1; GB/T 7762; GB/T 13640; GB/T 21196.2; HG/T 2580 | | Regulation (derived from) | National Standard Announcement No | | 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 | GB 16757-2016: Protective clothing -- X-ray protective clothing---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.
Protective clothing - X-ray protective clothing
ICS 13.340.10
C73
National Standards of People's Republic of China
Replacing GB 16757-1997
X-ray protective clothing protective clothing
Issued on. 2016-02-24
2017-03-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 Classification and specifications 1
4.1 Category 1
4.2 Size 2
5 requires 3
5.1 Design 3
5.2 Protective material 3
5.3 within the outer cover material 4
5.4 5 seam strength
6 Test methods 5
6.1 protective material 5
6.2 within the outer cover material 7
6.3 8 seam strength
8 6.4 Specifications
7 Inspection rules 8
7.1 Inspection type 8
7.2 factory inspection 8
7.3 Type inspection 9
8 logo should provide relevant information package 9
8.1 identifies 9
8.2 should provide relevant information 10
8.3 Packaging 10
9 storage, transport 10
References 11
1 with laboratory equipment broad beam when 6
6 experimental device when using a narrow beam of Fig. 2
Table 1 X-ray protective clothing Category 2
Table 2 X-ray protective aprons shapes and size 2
Table 3 X-ray protective coat shapes and size 2
Table 4 lead equivalent index and grade 3
The physical properties of protective material 4 Table 5
Ozone resistance protective material 4 in Table 6
Table 7 tensile strength and tear strength 5
Table 8 Lead equivalent test conditions 6
Table 9 X - ray tube voltage and the corresponding filter copper thickness 7
Table 10 factory inspection items 8
Table 11 type test items 9
Foreword
5.2.2,8.1,8.2 this standard is mandatory, the rest are recommended.
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB 16757-1997 "X-ray protective clothing", compared with GB 16757-1997, the main changes are as follows.
--- Modify the terms and definitions (see Chapter 3, Section 3 of the 1997 edition);
--- Modify the protective material lead equivalent level (see 522, 1997 edition Table 2.);
--- Modify the protective material physical performance indicators (see 523, 1997 edition Table 3.);
--- Increasing the ozone resistance protective material (see 5.2.4);
--- Increasing the inner and outer cover material requirements (see 5.3);
--- Increased seam strength indicator (see 5.4);
--- Modify the contents of the test rule (see Chapter 7, Chapter 7, 1997);
--- Modify the content of labeling and identification method of protective clothing (see 81, 1997 Version 8.1.);
--- Modify the protective clothing products should provide the relevant information (see 8.2, version 8.2, 1997).
This standard was proposed by the State Administration of Work Safety.
The standard personal protective equipment by the National Standardization Technical Committee (SAC/TC112) centralized.
This standard was drafted. scientific research center in Heilongjiang Province, labor safety, Beijing Jin Kai radiation shield Technology Co., Ltd., Harbin
Longjiang labor protection technology development company, Shanghai-day Radiation Protection Equipment Co., Ltd.
The main drafters of this standard. Liang, Liujing Yao Yue Qiang, Liu Dongling Zhao Rui, Tseng, Wang Xufeng, Li Sheng, Xu Jian, a nation rich.
This standard replaces the standards previously issued as follows.
--- GB 16757-1997.
X-ray protective clothing protective clothing
1 Scope
This standard specifies the terms and definitions of X-ray protective clothing, technical requirements, test methods and testing, labeling, packaging, transportation and storage
Claim.
This standard applies to contact with X-ray personnel wearing protective clothing.
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 528 Determination of vulcanized rubber or thermoplastic rubber tensile stress-strain properties
GB/T 529 Determination of vulcanized rubber or thermoplastic rubber tear strength (Trouser, angle and crescent test pieces)
GB/T 531.1 vulcanized rubber or thermoplastic rubber hardness test pushed Part 1. Shore hardness method (Shore hardness)
Test conditions for films and sheets. plastic 1040.3 Determination of tensile properties GB/T Part 3
GB/T 2411 plastic and hard rubber indentation hardness was measured using a durometer (Shore hardness)
GB/T 3917.3 Textiles - Tear properties of fabrics - Part 3. Determination of trapezoid tear
GB/T 3923.1 Part 1 textile fabric tensile properties. breaking strength and elongation measurement (strip method)
GB/T 7762 vulcanized rubber or thermoplastic rubber resistant to ozone cracking static tensile test
GB/T 13640 Type of protective clothing
GB wear fabrics by the Martindale method - Part 2/T 21196.2 Textiles. Determination of specimen breakdown
Determination of strength and elongation at break of HG/T 2580 Rubber or plastic coated fabrics stretch
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
X-ray protective clothes X-rayprotectiveclothing
With anti-body X-ray performance protective equipment.
Note. X-ray protective clothing including coats, pants, split skirt, protective aprons, gonadal protection aprons, vests, neck scarf, armband, breast shields, square, triangle
Pants.
3.2
Lead equivalent leadequivalent
Under the same irradiation conditions, having the measured equivalent protective material layer thickness of lead shielding. Symbol Pb indicate.
4 Classification and specifications
4.1 Classification
4.1.1 Classification by lead equivalent
Ⅰ (Light) 0.25mmPb≤Pb < 0.35mmPb;
Ⅱ (medium) 0.35mmPb≤Pb < 0.5mmPb;
Ⅲ (heavy) 0.5mmPb≤Pb < 1.0mmPb;
Ⅳ (super heavy) Pb≥1.0mmPb.
4.1.2 Collection by species classification
X-ray protective clothing by sub-species coats, pants, split skirt, protective aprons, gonadal protection aprons, vests, neck scarf, armband, breast protection
Cover, square, briefs, according to the design part of the front shield material type and sub-type front and rear surfaces, as shown in Table 1.
Table 1 X-ray protective clothing Category
Types of
Variety
Non-clothing clothing
Front-type protective aprons, gonadal protection aprons cervical collar, breast shields, square
Front and back type coats, pants, vests, split skirt, briefs armband
4.2 Specifications
4.2.1 X-ray protective clothing control portion size chosen according to the provisions of GB 13640.
4.2.2 X-ray protective aprons, protective coat of shapes and dimensions should be in accordance with Table 2, Table 3 provisions.
Table 2 X-ray protective aprons shapes and dimensions in millimeters
No. Type Symbol
size
Length and width
Small S 900 ± 20 550 ± 20
No. M 1000 ± 20 600 ± 20
Large L 1100 ± 20 650 ± 20
Oversized XL 1200 ± 20 700 ± 20
Note. length, width refers to the size of the narrowest and shortest aprons.
Table 3 X-ray protective coat shapes and dimensions in millimeters
No. Type Symbol
size
ABC
Small S 900 ± 20 550 ± 20 1050 ± 20
No. M 1000 ± 20 600 ± 20 1100 ± 20
Large L 1100 ± 20 650 ± 20 1200 ± 20
Oversized XL 1200 ± 20 700 ± 20 1250 ± 20
NOTE. A --- from the midpoint of the collar in the end cycloid long; B --- side protective coat with the fastening member of the front and rear sheet width; C --- in front of or behind
Intermediate fastening member with protective coat girth.
5 Requirements
5.1 Design
Design should meet the following requirements.
a) X-ray protective clothing design should be easy to wear off, and should make the wearer himself can accurately be worn in need of protection bit
Set on;
b) protective aprons and protective coats the front panel of the protective material should be able to cover the front part of the body from neck to knee, including the entire chest
And the shoulder;
c) the width of each shoulder protective material shall not be less than 110mm, and shoulder to shoulder piece should extend at least 150mm at the back;
Each section d) protective aprons joints, without protection, should be located in a protective skirt of the rear panel;
e) protective coat of the opening lap to be closely engaging manner should be firmly convenient overlap portion should be not less than 100mm; back protection
Material has been down to the knee;
Rear direction f) in front of protective clothing should be clearly designed to prevent an error in directional protection Wear and use;
g) should be considered in the design of protective clothing when used in conjunction with each other without prejudice.
5.2 protective material
5.2.1 General requirements
X-ray protective clothing protective material shall meet the following requirements.
a) protective materials should look no pores, cracks, bubbles, stains, foreign bodies and Bo Hou uneven performance impact defects;
b) effective attenuation material should be evenly distributed, and should contain a high atomic number elements such as lead, tungsten, bismuth, nickel and the like;
c) protective clothing, protective material shall repair, splice or patch.
5.2.2 lead equivalent
When tested in accordance with the method specified in 6.1.2, lead equivalent protective material shall comply with the requirements of Table 4, thyroid, breast and reproductive system, etc.
Lead equivalent protective material should reach 0.5mmPb ~ 1.0mmPb.
Table 4 lead equivalent indices and rating
species
Lead equivalent value and grade
mmPb
Ⅰ Ⅱ Ⅲ Ⅳ
Allowable error
Front type
Type front and back
front
Behind
0.25≤Pb < 0.350.35≤Pb < 0.5 0.5≤Pb < 1.0 Pb≥1.0
0.25≤Pb < 0.350.35≤Pb < 0.5 0.5≤Pb < 1.0 Pb≥1.0
0.15≤Pb≤0.25
5.2.3 Physical properties
When the method according to the prescribed test 6.1.3,6.1.4,6.1.5, the physical properties of X-ray protective clothing protective material shall conform to Table 5, and
Graded according to the provisions of Table 5.
Table 5 Physical properties of protective materials
project
Performance
Rubber, plastic and non-lead lead lead composites
Level Indicator Level Indicators
Tensile Strength
MPa
Portrait > 4.8
Lateral > 4
Portrait > 4
Transverse > 3.8
Portrait > 6
Transverse > 5
Portrait > 5.5
Transverse > 4.5
Elongation at break
Longitudinal ≥320
Transverse ≥300
Longitudinal ≥120
Transverse ≥110
Longitudinal ≥400
Transverse ≥380
Longitudinal ≥200
Transverse ≥160
Tear strength
(KN/m)
Portrait > 16
Transverse > 15.5
Portrait > 16.5
Transverse > 16
Hardness/Shore A
1 ≤68
2 ≤65
1 ≤80
5.2.4 ozone resistance
X-ray protective clothing protective material should have ozone resistance. When tested in accordance with the method specified in 6.1.6, ozone resistance level Press
Table 6 is determined.
Table 6 protective ozone resistance materials
Performance Level Performance
Cracking occurs when 110% elongation
210% elongation cracks did not appear
320% elongation cracks did not appear
4100% elongation cracks did not appear
5.3 within the outer covering material
5.3.1 General requirements
Outside in the X-ray protective clothing covering material shall meet the following requirements.
Inner and outer surfaces a) protective clothing covering material should be free of lead and other harmful substances in the fabric to prevent users from directly leaded protective material
The contact material;
Inner and outer b) protective clothing, covering the edges of the material should be strong, flexible;
Inner and outer c) protective clothing covering material should be easy to clean and disinfect.
5.3.2 breaking strength, tear strength
Inner and outer covering material tensile strength and tear strength when tested in accordance with the method specified in 6.2.2, shall comply with the requirements specified in Table 7.
Table 7 tensile strength and tear strength in Newtons
Fabric force direction breaking strength tear strength
Warp ≥980 ≥147
Zonal ≥490 ≥49
5.3.3 Wear Resistance
Outside the wear resistance of the covering material within the X-ray protective clothing according to the method specified in 6.2.3 test, after 100 laps should not wear
damaged.
5.4 seam strength
X-ray protective clothing of the joint should be carefully stitched or bonded closely, its method for seam strength shall be tested with 6.3,
Seam strength should be greater than 320N.
6 Test methods
6.1 protective material
6.1.1 General requirements
Protective materials should be visually method in natural light or under normal lighting conditions 200lx, according to test requirements 5.2.1.
6.1.2 lead equivalent
6.1.2.1 standard lead sheet lead equivalent alternative measurement is the subject of the sample. The standard should lead sheet purity of 99.9% with a standard lead sheet group level
Number of tolerance should be 0.1mm, the thickness accuracy of ± 0.01mm. Standard lead sheet measured attenuation values, you should use at least three different thicknesses
Standard lead sheet, its thickness is chosen should be able to cover the range of lead equivalent test sample. Measuring the exposure rate by standard or sample chip lead after debilitating.
Each standard lead sheet measured three times and averaged. Figure interpolation is used within the sample was determined lead equivalent.
6.1.2.2 When samples are measured, each not less than 3.00, the mean value. Each point was repeated three times, whichever is the lowest.
6.1.2.3 X-ray dosimeter measurement, energy measurement instrument response errors should be less than or equal to 10%. Test equipment and geometrical Article
Member shown in Figure 1, Figure 2 and Table 8.
Explanation.
1 --- X-ray tube;
2 --- beam limiting device;
3 --- sample or standard lead sheet;
4 --- shielded version;
5 --- X-ray dosimeter;
6 --- wall or floor.
Explanation.
1 --- X-ray tube;
2 --- beam limiting device;
3 --- shielded version;
4 --- sample or standard lead sheet;
5 --- X-ray dosimeter;
6 --- wall or floor.
Experimental device when a narrow beam of Fig. 1 when the experimental setup broad beam 2
Table 8 Lead equivalent test conditions millimeters
X-ray beam types wabcd
Broad beam conditions 100 1500 ≥50 ≥700 -
Narrow beam conditions
≤10a
≥45
≥32a
≥700 200
Table letter meanings.
w --- X-ray beam width;
--- A from the X-ray source and the sample;
B --- from the sample and the center of the dosimeter;
c --- distance from the center to the rear of the dosimeter wall or floor;
Distance d --- shield plate and the sample.
even when a lead equivalent.
6.1.2.4 X-ray beam used for the test should be broad beam. When the sample is small, thin, or even lead sample equivalent, can be used narrow beam.
6.1.2.5 X-ray machine high-pressure generating device shall meet the requirements of Table 9 voltage, output stability, the test tube voltage fluctuation in the percentage of 4%
the following.
Table 9 X - ray tube voltage and the corresponding filter copper thickness
Tube voltage
kV
Additional copper filter thickness
mm
150 0.7
200 1.2
250 1.8
300 2.5
400 3.5
Test X-ray protective clothing lead equivalent 6.1.2.6 tube voltage 150kV or less, filtered copper should 0.25mmCu. On the tube
Voltage 150kV or more X-ray protection material Lead equivalent test, the corresponding filter copper thickness as shown in Table 9.
6.1.2.7 X-ray protective clothing lead equivalent test the same protective material, the protective material should be close to the minimum or less of lead in the 400kV
Eq tested at different tube voltages of lead equivalent value, the test value should be less than five in order to determine the minimum level of protection lead equivalent material.
6.1.3 tensile strength, elongation at break
Lead Rubber Press GB/T 528's provisions, dumbbell-shaped Ⅰ type specimens, tensile test speed (500 ± 50) mm/min; lead plastic
According to the provisions of GB/T 1040.3 performed using type Ⅱ long specimen test tensile speed of (100 ± 10) mm/min.
6.1.4 Tear strength
Lead rubber, plastic lead by GB/T 529's provisions, the use of non-rectangular shaped specimens notched tensile speed of (500 ± 50) mm/min.
6.1.5 Hardness
Lead Rubber Press GB/T 531.1 of the regulations. Lead plastic according to the provisions GB/T 2411 will be.
6.1.6 ozone resistance
Ozone resistance test according to GB/T 7762 carried out. Test temperature is preferably (40 ± 2) relative humidity ℃, ozonated air is generally not exceed
Over 65%; an ozone concentration of (50 ± 5) × 10-8; test time of 96h.
Record test results, according to Table 6 shows the corresponding performance levels.
6.2 within the outer covering material
6.2.1 General requirements
Press 6.1.1,5.3.1 methods and requirements for testing.
6.2.2 breaking strength, tear strength
Breaking strength according to GB/T 3923.1 test, tear strength according to GB/T 3917.3 test.
6.2.3 Wear Resistance
Inner and outer wear resistance of the covering material according to GB/T 21196.2 testing. Sampling for the same protective clothing fabrics wear parts.
6.3 seam strength
6.3.1 Test preparation
Clipping seams in the center of the sample from the four parts of the underwear finished seams direction of the force direction 90 ° angle. Such as the use of seams sewn
Line, the sample should be the seam line with a knot in the end to prevent slippage. Tensile test speed (100 ± 10) mm/min.
Size and number of X-ray protective clothing sampling conducted by HG/T 2580 regulations.
6.3.2 Test procedure
X-ray protective clothing seam strength test procedure according to HG/T 2580 testing.
6.3.3 Processing Results
After obtaining the breaking strength of each sample, its lowest value as the seam breaking strength.
6.4 Specifications
Protective clothing Size accurate to 1mm with a dial gage testing.
7 Inspection rules
7.1 Inspection Type
X-ray inspection is divided into protective clothing factory inspection and type test.
7.2 factory inspection
7.2.1 Test items
Each X-ray protective clothing before leaving the factory in accordance with Table 10 items tested.
Table 10 factory inspection items
No. Test items Test method determines the terms of clause
1 lead equivalent level of compliance 5.2.2
2 Specifications 6.4 4.2
3 protective materials General requirements 6.1.1 5.2.1
4 inner and outer covering material General requirements 6.2.1 5.3.1
5 Logo 8.1
6 8.2 should provide relevant information
7 Packaging 8.3
7.2.2 eligibility determination
Table 10 test items are qualified products for qualified products.
7.3 Type inspection
Conditions 7.3.1 Type inspection
When one of the following conditions, type of inspection should be carried out.
a) new products or products to the plant production trial setting for Identification;
B) after the official production, such as structure, materials, processes greatly changed;
c) normal production for two years;
d) products discontinued after six months to restore production;
e) the national quality supervision agencies When type test.
7.3.2 Test items
In addition to including the type of inspection factory inspection of all projects, it should also listed in Table 11 of the inspection.
Table 11 type test items
No. Test items Test method determines the terms of clause
1 protective material lead equivalent a 6.1.2 5.2.2
2 protective physical properties of materials 6.1.3; 6.1.4; 6.1.5 5.2.3
3 protective ozone resistance materials 6.1.6 5.2.4
4 material within the outer covering breaking strength, tear strength, abrasion resistance 6.2.2; 6.2.3 5.3.2; 5.3.3
5 seam strength 6.3 5.4
a protective material lead equivalent tests necessary inspection items and periodic inspection programs.
7.3.3 Sampling method and number
Factory inspection should be carried out, from the batch of qualified random samples for type testing. Number of test samples is determined by the batch size, 100
(Including 100) within the random sample 2; 101 to 1000 randomly selected three; and more than 1001 randomly selected five.
8 logo should provide relevant information, packaging
8.1 Logo
Shall be securely fastened labels should be clearly and permanently marked on the label the following information on protective clothing.
a) product name, size and grade;
b) manufacturer's name and address;
c) implementation of standard number and year;
d) the date of manufacture;
e) X-ray protective properties.
X-ray protective properties marked method. lead equivalent (leaded material. no less than 5 times the minimum value of the tube voltage test; non-lead materials. can
A plurality of test values given tube voltage, a plurality of test values should be included in the minimum test value unit. mmPb)/tube voltage (corresponding to the lead equivalent
When the filter plates kV)/filter plates (the lead equivalent test used). X-ray tube voltage peak detector when used units.
Example 1. 0.35mmPb (150kV/0.7mmCu);
Example 2. Before 0.35mmPb/rear 0.25mmPb (150kV/0.7mmCu).
8.2 should provide relevant information
Protective clothing should be in its packaging additional product description, you can use the print, atlas available to the end user, shall include, but not limited to,
Under Content.
a) product manufacturer's name and address and contact information;
b) the date of manufacture;
c) product type, structure and material;
d) wearing instructions and precautions;
e) the product is stored and/or deadlines, shall include, but not limited to, the following.
--- X-ray protective clothing should be hung after use away from heat sources and avoid glare can not be pressed into a dead-fold and injuries;
--- X-ray protective clothing normal period of use. outdoor field use 3 to 4 years, indoor use 4 to 5 years, tested does not meet the
Ready for the scrap judgment standard technical requirements;
f) a detailed description of the object of protection;
g) maintenance, cleaning methods and transport methods;
h) a detailed description of the product and the level of protection of clearly stated compliance with this standard;
i) a description of the product selection, the product non-applicability of the warning.
8.3 Packaging
Each product should be placed in a soft rain moisture-proof bag or carton packaging should be wooden. We shall have the following logo on the outer packaging.
a) the product name, specifications, quantity, date of production;
b) packaging volume (length × width × height), weight (gross, net);
c) the implementation of standards;
d) manufacturer's name, address and postal code.
9 storage, transport
9.1 Transport and storage should avoid stress, sun and rain. Forbidden contact with acids, alkalis, oils, organic solvents and other corrosive and dissolved substances.
9.2 The product should be stored in dry and ventilated warehouse, storage temperature is 0 ℃ ~ 40 ℃, 150mm above ground booster.
9.3 products under the above storage conditions, counting from the date of manufacture, shelf life is one year in product quality during storage should be consistent with 5.2,
Requirements of 5.3 and 5.4. Expired storage should be re-sampling, the number of sampling according to 7.3.3 performed before the sale and use after passing inspection.
references
[1] GB 8965.1-2009 protective clothing flame retardant protection - Part 1. flame-retardant clothing
[2] GB 8965.2-2009 protective clothing flame retardant protection - Part 2. Welding clothes
[3] GB 12014-2009 anti-static clothing
[4] GB 18871-2002 ionizing radiation protection and safety of radiation sources basic standards
[5] GB 24540-2009 protective clothing acid and alkali chemical protective clothing
[6] GB Z117-2006 industrial X-ray detection Radiological protection standards
[7] GB Z130-2013 medical X-ray diagnostic radiological protection standards
[8] GB Z/T 147-2002 X-ray protective materials Determination of attenuation properties
[9] GB Z176-2006 medical diagnostic X-ray standard personal protective materials and supplies
[10] AQ6104-2007 anti-X-ray gloves
[11] YY/T 0128-2004 Medical Diagnostic X-ray radiation protection appliance appliances and utensils
[12] YY0318-2000 Medical Diagnostic X-ray radiation protection instruments - Part 3. Protective clothing and protective equipment
[13] CNS10297-1998 X-ray protective aprons
[14] IEC 61331-3.1998 Medical Diagnostic X-ray radiation protection instruments - Part 3. Protective clothing and protective equipment
[15] International Commission on Radiological Protection (ICRP) in 2007 Recommendation No. 103
[16] BS3783-1964 rubber X-ray protective lead aprons
[17] DINEN6857-1-2009 unleaded less protective clothing protective lead performance testing
[18] DINEN61331-3-2002 medical diagnostic X-ray protective devices Part 3 ...
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