QB/T 2902-2007 English PDF (QBT2902-2007)

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QB/T 2902-2007: Art candle
QB/T 2902-2007
QB
LIGHT INDUSTRY STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 71.100.35
Classification No.: Y44
Filing No.: 22727-2008
Art candle
工艺蜡烛
ISSUED ON: DECEMBER 03, 2007
IMPLEMENTED ON: JUNE 01, 2008
Issued by: National Development and Reform Commission of PRC
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 4 
4 Requirements ... 4 
5 Test method ... 5 
6 Inspection rules ... 7 
7 Marking, packaging, transportation, storage, shelf life ... 8 
Art candle
1 Scope
This standard specifies the terms and definitions, requirements, test methods,
inspection rules and signs, packaging, transportation, storage, shelf life of art
candles.
This standard applies to art candle products.
2 Normative references
The provisions in following documents become the provisions of this Standard
through reference in this Standard. For the dated references, the subsequent
amendments (excluding corrections) or revisions do not apply to this Standard;
however, parties who reach an agreement based on this Standard are
encouraged to study if the latest versions of these documents are applicable.
For undated references, the latest edition of the referenced document applies.
GB/T 191 Packaging - Pictorial marking for handling of goods
Order No.75 of the General Administration of Quality Supervision, Inspection
and Quarantine of the People's Republic of China "Measures for the
Supervision and Administration of the Measurement of Quantitative
Packaging Commodities"
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1
Art candle
A candle, which has a special surface effect or irregular shape, which has
been specially processed manually.
4 Requirements
4.1 Performance Indicators
The performance indicators of art candles shall meet the requirements of Table
5.4.2 Test procedure
Take 4 samples. Place them flat in a constant temperature box at (35 ± 1) °C.
Keep for 24 h. Take them out. Return to room temperature. Observe whether
there is any deformation or discoloration.
5.5 Light stability
5.5.1 Main instruments
a) Light stability test box: A closed UV light box, which is equipped with heat
dissipation device;
b) Ultraviolet lamp: Wavelength 365 nm; Illuminance 500 µW/cm2 ~ 600
µW/cm2.
5.5.2 Test procedure
Take 4 samples. Lay them flat in the light stability measuring box, at a distance
of 200 mm under the UV lamp. Keep them for 48 hours. Take them out. Observe
whether there is any discoloration.
5.6 Product placement stability
Take 4 samples. Place them on an inclined surface of 10°, one by one. Observe
whether there is any overturning phenomenon, at any placement angle.
5.7 Combustion performance
Take 4 samples. Light the candle, for 15 minutes, at room temperature of 15 °C
~ 25 °C, without strong air convection. Observe the burning condition, until it is
completely extinguished. Use a steel ruler to measure the flame height. Take
the maximum of the test results, among the 4 candles, as the final test result.
Note: The candle's burning performance test is carried out according to the following
requirements.
1) If the mass is less than 40 g; the burning stops 10 mm from the bottom of the
candle;
2) If the mass is greater than 40 g AND the diameter is less than 60 mm, the burning
stops for at least 1 h every 2 h; the burning stops at 20 mm from the bottom of
the candle:
3) If the diameter is greater than 60 mm, the burning stops for at least 1 h every 5
h of burning; the burning stops at 20 mm from the bottom of the candle.
5.8 Burning time
Take 4 samples. Use a timer, to measure the time taken for the candle, FROM
ignition TO burning to 10 mm or 20 mm from the bottom of the candle (refer to
note 5.7 for the test), under the condition of room temperature 15 °C ~ 25 °C,
without strong air convection.
5.9 Burning afterglow
Take 4 samples. Ignite the candle for 30 minutes, at a room temperature of
15 °C ~ 25 °C, without strong air convection. Measure the time, FROM the
extinguishing of candle wick TO smoke-free. Relight the candle. Repeat the
above test. Take the maximum value of the two test results, as the final test
result.
5.10 Net content
Take 10 samples for weighing. Compare with the marked net content. It shall
meet the requirements of Order No.75 of the General Administration of Quality
Supervision, Inspection and Quarantine.
6 Inspection rules
6.1 Inspection classification
Product inspection is divided into exit-factory inspection and type inspection.
6.1.1 Exit-factory inspection
Each batch of products must pass the inspection, by the inspection department
of the manufacturer, before leaving the factory. The exit-factory inspection items
are color, odor, candle wick's exposed length, combustion performance.
6.1.2 Type inspection
Type inspection items are all the requirements of this standard. It shall be
carried out, once a year during normal production. Type inspection shall also
be carried out, in one of the following situations.
a) When there are major changes in raw materials and processes, or formula
adjustments, which may affect product quality;
b) When production resumes after a long-term shutdown;
c) When there is a big difference between the exit-factory inspection result
and the last type inspection result;
d) When the industry management department and the national quality
supervision department put forward the request for type inspection.