|
US$374.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB 19510.9-2009: Lamp controlgear -- Part 9: Particular requirements for ballasts for fluorescent lamps
Status: Valid GB 19510.9: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB 19510.9-2009 | English | 374 |
Add to Cart
|
3 days [Need to translate]
|
Lamp controlgear -- Part 9: Particular requirements for ballasts for fluorescent lamps
| Valid |
GB 19510.9-2009
|
| GB 19510.9-2004 | English | 679 |
Add to Cart
|
3 days [Need to translate]
|
Lamp controlgear -- Part 9: Particular requirements for ballasts for fluorescent lamps
| Obsolete |
GB 19510.9-2004
|
PDF similar to GB 19510.9-2009
Basic data | Standard ID | GB 19510.9-2009 (GB19510.9-2009) | | Description (Translated English) | Lamp controlgear -- Part 9: Particular requirements for ballasts for fluorescent lamps | | Sector / Industry | National Standard | | Classification of Chinese Standard | K74 | | Classification of International Standard | 29.140.99 | | Word Count Estimation | 19,161 | | Date of Issue | 2009-10-15 | | Date of Implementation | 2010-12-01 | | Older Standard (superseded by this standard) | GB 19510.9-2004 | | Adopted Standard | IEC 61347-2-8-2006, IDT | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 11 of 2009 (No. 151 overall) | | 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 Chinese standard specifies the following for 1 000 V 50 Hz or 60 Hz AC power Particular requirements for ballasts for fluorescent lamps (excluding ballast resistor). Its supporting cathode fluorescent lamp can bring warm, but also can be used without preheating the cathode, can work with a starter, it may not work with the starters, these lamps rated power, size and characteristics should meet IEC 60081 and IEC 60901 in the regulations. This standard applies to complete ballasts and their component parts, for example: reactors, transformers and capacitors. Thermally protected ballasts special requirements are given in Appendix B. | GB 19510.9-2009: Lamp controlgear -- Part 9: Particular requirements for ballasts for fluorescent lamps
---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.
Lamp controlgear.Part 9. Particular requirements for ballasts for fluorescent lamps
ICS 29.140.99
K74
National Standards of People's Republic of China
GB 19510.9-2009/IEC 61347-2-8.2006
Replacing GB 19510.9-2004
Lamp control
Particular requirements for ballasts for fluorescent lamps. Part 9
(IEC 61347-2-8.2006, IDT)
Posted 2009-10-15
2010-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 1 General requirements
5 Test Description 2
6 Category 2
7 Flag 2
8 accidental contact with live parts of the measures to prevent 2
9 Terminal 3
10 grounding device 3
11 Moisture resistance and insulation 3
12 Dielectric strength 3
Heat winding 13 Test 3
Thermal limit of 14 ballast 3
15 high-voltage pulse test 5
16 Fault Status 6
17 Structure 6
18 creepage distances and clearances 6
19 Screws, current-carrying parts and connections 6
20 heat, fire and resistance to tracking 6
21 corrosion 6
22 no-load output voltage 6
Test Appendix A (normative) to determine whether a conductive part is a live part may cause an electric shock 7
Appendix B (normative) Particular requirements for thermal control device 7 protected lamp
Particular requirements 7 Annex C (normative) with thermal protector electronic control unit lamp
Annex D (normative) heating test control apparatus for thermally protected lamp of claim 7
Annex F (normative) anti-convection air chamber 7
Derivation of Annex G (normative) values of pulse voltages 8
Annex H (normative) Test 8
Selection Annex I (normative) varistor 8
Appendix J (informative) Description of ballast temperature 10
Supplementary requirements Annex K (informative) double or reinforced insulation built-in magnetic ballasts 12
References 13
GB 19510.9-2009/IEC 61347-2-8.2006
Foreword
All technical content in this section is mandatory.
GB 19510 "Lamp control" is divided into 14 parts.
--- Part 1. General requirements and safety requirements;
--- Part 2. starting devices (other than glow starters) - Particular requirements;
--- Part 3. Tungsten with AC/DC buck converter electronic Particular requirements;
--- Part 4. Particular requirements for the exchange of electronic fluorescent ballasts;
--- Part 5. Particular requirements for dc supplied electronic ballasts for general lighting of;
--- Part 6. Public transport lighting Particular requirements for dc electronic ballasts;
--- Part 7. DC electronic ballasts for aircraft lighting Particular requirements;
--- Part 8. DC electronic ballasts for emergency lighting Particular requirements;
--- Part 9. Particular requirements for ballasts for fluorescent lamps;
--- Part 10. discharge lamps (excluding fluorescent lamps) with the special requirements of the ballast;
--- Part 11. high frequency cold start tubular discharge lamps (neon) Specific requirements for electronic exchange and the frequency converter;
--- Part 12. Particular requirements and lighting combined with miscellaneous electronic circuits;
--- Part 13. discharge lamps (excluding fluorescent lamps) or AC supplied electronic ballasts for special requirements;
Part --- Article 14. LED module with special requirements for dc or ac electronic control device.
This section of Part 9 GB 19510.
This section should be used with GB 19510.1-2009, it is appropriate in terms of GB 19510.1-2009 supplement or repair
Formulated from the following changes.
This section identical with IEC 61347-2-8.2006 "Part 2-8 Lamp control. Particular requirements for ballasts for fluorescent lamps"
(In English).
This section is equivalent translation IEC 61347-2-8.2006.
For ease of use, this section made the following editorial changes.
a) "IEC 61347-2-8" to "this Part";
b) Remove the preface to IEC 61347-2-8, IEC 61347-2-8 revised introduction;
c) The international standard "(note .)" form brackets removed;
d) as a decimal by decimal points instead of "and", ".";
e) For other international standards referenced it has been adopted as the equivalent of a standard, this part of the country with reference to these national standards
Or industry standards instead of the corresponding international standards, and the rest not tantamount to the adoption of a standard for the international standards in this section are
Direct reference (see Part 2 of this chapter).
This Part replaces GB 19510.9-2004 "Part 9 Lamp control. Particular requirements for ballasts for fluorescent lamps."
Some of the major differences compared with GB 19510.9-2004 this as follows.
Standard --- original standard relates to both is the latest version of the Standard;
--- A reference to the original standards were increased and the deletion of all references using the IEC 61347-2-8 standard;
--- Added Figure I. 1;
--- Increase in Chapter 22 no-load output voltage requirement;
--- Increase "if (ballast capacitor and one), the housing adjacent to the ballast capacitor" in Table 2 of requirements;
--- The 15.1 insulating electrical strength to strength, "Sample" is changed to "ballast" to increase "Figure I.1";
GB 19510.9-2009/IEC 61347-2-8.2006
--- 15.2 "sample" is changed to "ballast";
--- Added Appendix K.
This section of the Appendix A, Appendix B, Appendix C, Appendix D, Appendix E, Appendix F, Appendix G, Appendix H and Appendix I are normative attached
Record, Appendix J and Appendix K is an informative annex.
This part is proposed by the China National Light Industry Council.
This part of the National Electric lighting Standardization Technical Committee (SAC/TC224) centralized.
This section drafted by. National Electric Light Source Quality Supervision and Inspection Center (Shanghai), Beijing Lighting Research Institute, Foshan City, China Electrical Lighting
Limited, NVC Lighting Technology Co., Ltd., Wujiang Huafeng (Huaneng) Electronics Co., Ltd. Shanghai Guorong enameled wire.
Drafters of this section. Gu Yihua, Yuan Qi, Yang Xiaoping, Yang Chi District, Xiong Fei, Dingbu Xiong, Yang Guojun, Cooper rights, water Yu Rong, Zhou Anshun.
This part of the standard replaces the previous editions are.
--- GB 2313-1980;
--- GB 2313-1993;
--- GB 19510.9-2004.
GB 19510.9-2009/IEC 61347-2-8.2006
Introduction
This section and the various parts constituting the GB 19510.2 ~ GB 19510.14 regulation when referring to GB 19510.1-2009 any provision of
Set the terms and scope of the implementation of the order of the trial, but also provides the necessary additional requirements. GB 19510.2 ~ GB 19510.14 in
Each part is separate, and do not refer to each other.
If this section by "a section in accordance with GB 19510.1-2009 requires," this sentence to refer to the GB 19510.1-2009
A provision requirements, the meaning of this statement is in accordance with all the requirements of this provision, but obviously does not apply to GB 19510.2 ~
Except for the contents of the control device GB 19510.14 specific type of lamp.
GB 19510.9-2009/IEC 61347-2-8.2006
Lamp control
Particular requirements for ballasts for fluorescent lamps. Part 9
1 Scope
This part of GB 19510 specifies the following fluorescent lamps for 1000V 50Hz or 60Hz AC power with a special ballast
Requirements (not including ballast resistance). With matching belt preheat cathode fluorescent lamp can be without preheating the cathode, with starters
Work may not start working with those rated lamp power, size and characteristics should comply with IEC 60081 and IEC 60901 in
Provisions.
This section applies to complete ballasts and their component parts, such as. reactors, transformers and capacitors. Thermally protected ballast special
Specific requirements are given in Appendix B.
This section deals with the normal work at grid frequency lamp with ballast, electronic ballast exchange does not include high-frequency operation, the
Ballast requirements see GB 19510.4.
Capacitance greater than 0.1μF capacitor requirements, see GB 18489 and IEC 61049. 0.1μF capacitance value less than or equal to the electrical
Container requirements, see IEC 60384-14.
Performance requirements are given in IEC 60921.
2 Normative references
The following documents contain provisions which, through reference in this Part of GB 19510, constitute provisions of this part. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this
section.
This part of GB 19510.1-2009 Chapter 2 of the normative references and normative references the following documents.
Part 1 GB 19510.1-2009 lamp control apparatus. General and safety requirements (IEC 61347-1.2007, IDT)
3 Terms and Definitions
GB 19510.1-2009 this part of Chapter 3 of the terms and definitions, as well as the following terms and definitions.
3.1
By the manufacturer to determine the temperature of the winding under the conditions specified in this section.
Note. The requirements and installation conditions ballast power supply are given in Appendix H.
3.2
(Open circuit condition) square of the voltage output of the voltage source generated by the internal impedance of the voltage source (as viewed from the same side) of the provider.
4 General requirements
In accordance with the requirements of GB 19510.1-2009 Chapter 4, together with the following requirements.
4.1 capacitors and other components
Mounted in the ballast capacitors and other components should be in accordance with the relevant IEC standards.
GB 19510.9-2009/IEC 61347-2-8.2006
4.2 thermally protected ballast
Thermally protected ballasts shall be in accordance with Appendix B requirements.
5 Test Description
In accordance with the requirements of GB 19510.1-2009 Chapter 5 and the following requirements.
5.1 Type tests shall be carried out on a batch of samples submitted by the eight ballast type test composition. Seven of ballast for durable
Test, a ballast is used for all other tests. About endurance test eligibility requirements, see Chapter 13.
Also, a high voltage pulse with six ballast tested in accordance with the requirements of Chapter 15, the ballast under test connected to the ballast inside
High voltage pulse generating circuit. During the test, there should not unqualified.
5.2 Test conducted under conditions GB 19510.1-2009 Appendix H prescribed. Typically, each type of ballast to be all
Test, if a group involved are similar to the ballast, the bulk of the power rating of each ballast test; or prepared with
Consult the manufacturer, select a representative of the ballast from the batch tested. In the same structure but with different characteristics together with a number of ballast
When submitting the acceptance, when the manufacturer test reports or other institutions are accepted inspection departments, in accordance with Chapter 13 and in accordance with the requirements of Appendix E
Durability test is different from the number shown in 4500 constant usage of S carried out the sample allows a reduction, or even eliminates the need for this
Some tests.
Category 6
In accordance with Chapter 6 GB 19510.1-2009 requirements.
7 logo
As a lamp ballast components do not have to make signs.
7.1 Mandatory Signs
Ballast (not including integral ballasts) shall be in accordance with the requirements of 7.2 in GB 19510.1-2009, clearly and durably marked with the following
Flag.
--- GB 19510.1-2009 in 7.1 a), b), e), f), g) and r) of the content; and
--- If the peak voltage exceeds 1500V, marked the peak voltage, this voltage withstand connecting leads should also be made of such signs.
Pulse glow starter and ballast together produce not subject to this requirement.
7.2 Supplementary flag
In addition to these mandatory signs, if necessary, the following shall apply content marked on the ballast, or marked on the manufacturer's catalog or
Similar instructions.
--- GB 19510.1-2009 in 7.1 c), h), i), j), k), o), p) and q) of the content; and
--- For ballast by more than one independent element constituted shall be marked with other components and/or on its current control element or inductance
The basic parameters of the main capacitor;
--- For a separate series capacitor (instead of radio interference suppression capacitor) ballast, repeat marked rated
Voltage, capacitance and tolerance.
7.3 Other marks
Manufacturers may provide the applicable non-mandatory signs.
8 measures to prevent accidental contact with live parts
GB 19510.1-2009 accordance with the requirements of Chapter 10.
GB 19510.9-2009/IEC 61347-2-8.2006
9 Terminals
GB 19510.1-2009 accordance with Chapter 8 requirements.
10 grounding device
In accordance with the requirements of GB 19510.1-2009 Chapter 9.
11 Moisture resistance and insulation
GB 19510.1-2009 accordance with the requirements of Chapter 11.
12 Dielectric strength
In accordance with the requirements of GB 19510.1-2009 Chapter 12.
Heat test 13 windings
GB 19510.1-2009 accordance with the requirements of Chapter 13.
Thermal limit of 14 ballasts
Its ballast mounting surface should not cause harm their safety temperature.
Compliance is checked by the tests of 14.1 to 14.4.
14.1 pre-test, test and measurement
Before the test, should be subjected to the following tests and measurements.
a) lamp ballasts should enable the normal start and work;
b) If necessary, measuring the resistance of each winding at ambient temperature.
The voltage across the capacitor 14.2
At the rated frequency, installed in the ballast voltage across the capacitor should be according to the following a) and b) requirements, these requirements do not apply
Installed in the launcher or start capacitor means, does not apply to electric capacity is less than or equal to 0.1μF (nominal value) of the capacitor, b)
Entry requirements do not apply to self-healing capacitors.
a) Under normal conditions, when the ballast tested at its rated supply voltage, the voltage across the capacitor should not exceed the rated
Voltage;
b) in the abnormal state (see 14.3), when the ballast tested at 110% of its rated voltage condition, both ends of the capacitor
Table capacitor voltage should not exceed the applicable test voltage shown in Figure 1.
Table 1 abnormal state test voltage capacitor
Rated voltage Un Voltage limit
Any type
Rated voltage of 240V or less 240V, 50Hz or 60Hz,
Maximum rated temperature is less than or equal to 50 ℃
1.25Un
Other non-self-healing type rating, 50Hz or 60Hz 1.50Un
Self-healing Other ratings, 50Hz or 60Hz 1.25Un
14.3 ballast thermal limit test
When the ballast in accordance with Appendix H and Appendix J of the conditions of the test, the temperature should not exceed the test tables under normal and abnormal conditions. 2
The value of each field test under the conditions specified.
NOTE. For detailed description see abnormal line conditions of GB 7000.1-2007 Appendix C.
GB 19510.9-2009/IEC 61347-2-8.2006
Table 2 Maximum temperature
part
The maximum temperature
At 100% of rated voltage
normal work
At 106% of rated voltage
normal work
At 110% of rated voltage
Abnormal operation
Ballast indicated abnormal conditions of temperature values
Winding
If (one of the ballast capacitor), the town with the flow
Housing adjacent capacitor.
--- Without temperature flag
Various materials components.
--- Wood filler phenolic molded parts
--- Mineral filler phenolic molded parts
--- Urea molded plastic parts
--- Melamine molded parts
--- Laminating resin bonded paper parts
--- Rubber parts
--- Thermoplastic material component
Under normal conditions, a measure of 100% of the rated voltage winding temperature rise is intended to verify the indicated parameters, in order to provide reference for the lighting design and, therefore,
Not necessarily be. Only in the ballast signs or catalog when otherwise required for such measurements with.
b only possible abnormal state lines for such measurements, temperature extremes abnormal winding state should not exceed the number of days and durability test theory
More than two thirds of the number of days corresponding to the temperature value (see Table 3).
c except use as wire insulation, to prevent contact with live parts or to provide support for the live parts of the thermoplastic material, but also to measure its temperature.
The measured temperature value is used to establish the 18.1 GB 19510.1-2009 test conditions.
If the materials and manufacturing methods listed in the table with different speeds, they should not be higher than the operating temperature of the material proven allowed
temperature.
When the ballast is operating at its claimed maximum ambient temperature, the temperature should not exceed the table limits. If the ballast is not
Difference liter.
Table 3 abnormal operating conditions and accepted at 110% of rated voltage
Extreme temperatures ballasts winding 30-day durability test
Constant S
Limit temperature
S4.5 S5 S6 S8 S11 S16
95 178 168,154,138,125,115
100 186 176,161,144,131,121
105 194 183,168,150,137,126
110 201 190,175,156,143,132
GB 19510.9-2009/IEC 61347-2-8.2006
Table 3 (Continued)
Constant S
Limit temperature
S4.5 S5 S6 S8 S11 S16
115 209 198,181,163,149,137
120 217 205,188,169,154,143
125 224 212,195,175,160,149
130 232 220,202,182,166,154
135 240 227,209,188,172,160
140 248 235,216,195,178,166
145 256 242,223,201,184,171
150 264 250,230,207,190,177
Note. Unless otherwise specified ballast, uses extreme temperature values shown S4.5 bar.
For a few days to accept the endurance test over 30 days of ballast, temperature extremes should be the GB 19510.1-2009 Chapter 13
Formula (2) is calculated, but the goal of the test period (days) at least equal to two-thirds of the theoretical endurance test period values.
14.4 After the heating test limit, the ballast cooled to room temperature, at which point it should meet the following conditions.
a) ballast marking shall be clear;
b) ballast shall be able to withstand in Chapter 12 under the voltage test without being damaged, the test voltage can be reduced to GB 19510.1-
2009 75% of the value shown, but not less than 500V.
15 high-voltage pulse test
Labeled 7.1 Supplementary requirements as a sign of ballast shall withstand 15.1 or 15.2 of the test.
Simple inductive ballast shall withstand the test 15.1.
Other simple ballast Ballast outside should withstand the test 15.2. The manufacturer shall explain the product which has been carried out
test.
15.1 in accordance with the requirements of 5.1 to take six samples, three samples with moisture and test electric strength test Chapter 11 and Chapter 12 provisions.
After these tests are completed pre-treatment, immediately all six samples were subjected to a high voltage pulse test.
The ballast under test as well as a variable resistor and a closing time (not including bounce time) applicable to 3ms ~ 15ms relay
Switch, for example. H16 or VR/312/412-type vacuum switch, connected to the DC power source, so that by adjusting the current and operating line
Relay cause voltage pulses in the ballast, and then slowly adjust and raise the current until it reaches a peak voltage ballast flag. pulse
Impulse voltage shall be measured in accordance with Annex I and I. Claim 1 directly on the terminals of the ballast.
Note 1. If the closing time is very short electronic circuit relays should be taken to prevent a particularly high induced voltage pulse.
The DC current value reaches the starting voltage is recorded, and then of the ballast 1h at this current, during this period, the per minute
Disconnect the current 10 times, each time off and 3s.
After the test is completed, immediately accepted all six ballasts proof insulation and dielectric strength test Chapter 11 and Chapter 12 provisions.
Note 2. For test lines with series capacitors, the capacitor should be short-circuited.
15.2 at the output terminal is not connected lamp ballast conditions, regulate the supply voltage, the pulse voltage by the starter and ballast to reach the town
The pulse voltage on the current flag. The cathode heating coil ballasts analog resistive load.
Then, the ballast without light for 30 days under these conditions.
Number of ballast, the process and the status after the test before the test are the same as the provisions of 15.1.
GB 19510.9-2009/IEC 61347-2-8.2006
For its flag indicates only use ballasts with trigger delay means, should receive the same test, but the test is 250 pass /
Off cycle, the off time is at least 2min.
16 Fault Status
GB 19510.1-2009 not in accordance with the requirements of Chapter 14.
17 Structure
In accordance with the requirements of GB 19510.1-2009 Chapter 15.
18 creepage distances and clearances
In accordance with the requirements of GB 19510.1-2009 Chapter 16 as well as the following requirements.
In the open core type ballasts, as wire insulation and can withstand the IEC 60317-0-1 Chapter 13 Class 1 or Class 2
Enamels or similar materials voltage test in accordance with GB 19510.1-2009 Table 3 and Table 4 values calculated between the different winding enameled
Distance or wire and shell, between the core may be considered as equivalent to 1mm distance. Creepage distances and clearances are still less than
In this case the calculation method 2mm and enamel coating.
19 Screws, current-carrying parts and connections
In accordance with the requirements of GB 19510.1-2009 Chapter 17.
20 heat, fire and tracking resistance
In accordance with the requirements of GB 19510.1-2009 Chapter 18, except 18.5 requirements.
21 corrosion
In accordance with the requirements of GB 19510.1-2009 chapter 19.
22 no-load output voltage
GB 19510.1-2009 accordance with the requirements of Chapter 20.
GB 19510.9-2009/IEC 61347-2-8.2006
Appendix A
(Normative)
Test is to determine whether a conductive part may cause an electric shock of live parts
Appendix A in accordance with the requirements of GB 19510.1-2009.
Appendix B
(Normative)
Particular requirements for thermally protected lamp control device
According to GB 19510.1-2009 Appendix B requirements.
Appendix C
(Normative)
Particular requirements for electronic lamp controlgear with thermal protector
C is not in accordance with the requirements of GB 19510.1-2009 appendix.
Appendix D
(Normative)
Heating control device test requirements for thermally protected lamp
According to GB 19510.1-2009 Appendix D requirements.
Appendix E
(Normative)
Appendix E in accordance with the requirements of GB 19510.1-2009.
Appendix F
(Normative)
Anti-convection air chamber
In accordance with the requirements of Appendix F of GB 19510.1-2009.
GB 19510.9-2009/IEC 61347-2-8.2006
Appendix G
(Normative)
Derivation of the pulse voltage value
Not in accordance with the requirements of Appendix G GB 19510.1-2009.
Appendix H
(Normative)
test
In accordance with the requirements of Appendix H GB 19510.1-2009.
Appendix I
(Normative)
Selection varistor
I. 1 General Requirements
In order to avoid a change in the voltage measuring voltage pulse period, the varistor connected in series with a number of ballast under test in parallel.
As it involves the problem of energy, the most compact varistors sufficient to achieve the above purpose.
Forming ballast voltage depends not only on its internal inductance, DC current and capacitance C2 also depends on the quality of the vacuum switch,
Because the energy stored in the ballast will be discharged through the switching transients occurring at being freed.
Therefore, it is necessary to be selected for varistors and a switch for the line.
Since the varistor has the tolerance can be enhanced or compensation of its own, so that for each type of ballast under test should be selected individually sensitive
resistance.
I. 2 Varistor selection
First, adjust the ballast current until the voltage across the capacitor C2 is higher than a predetermined test voltage of approximately 15% to 20% and then, Lee
Varistor connected in series with the voltage falls below a predetermined value.
Preferably two or three high-voltage varistor control most of the test voltage, and then one or two low-voltage varistor controlled trial
The remainder of the test voltage. Then, to change the current through the ballast, so that accurate test voltage regulator.
Single varistor voltage-current characteristic voltage approximation can be determined according to the corresponding varistor shown (for ...
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 19510.9-2009_English be delivered?Answer: Upon your order, we will start to translate GB 19510.9-2009_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB 19510.9-2009_English with my colleagues?Answer: Yes. The purchased PDF of GB 19510.9-2009_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. Question 5: Should I purchase the latest version GB 19510.9-2009?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB 19510.9-2009 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.
|