GB/T 30099-2013 English PDF (GBT30099-2013)

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GB/T 30099-2013: General specifications for laboratory centrifuge
GB/T 30099-2013
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 71.040.10
N 61
General specifications for laboratory centrifuge
ISSUED ON: DECEMBER 17, 2013
IMPLEMENTED ON: MAY 01, 2014
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions... 4 
4 Product classification ... 6 
5 Conditions of use ... 6 
6 Requirements ... 6 
7 Test methods ... 9 
8 Inspection rules ... 13 
9 Marking ... 16 
10 Packaging, transportation and storage ... 17 
General specifications for laboratory centrifuge
1 Scope
This Standard specifies the terms and definitions, classification, conditions of use,
requirements, test methods, inspection rules, marking, packaging, transportation and
storage of laboratory centrifuges.
This Standard applies to laboratory centrifuges (hereinafter referred to as centrifuges)
whose rated maximum speed is not more than 30 000 r/min.
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 191-2008, Packaging - Pictorial Marking for Handling of Goods
GB/T 2829-2002, Sampling procedures and tables for periodic inspection by
attributes (Apply to inspection of process stability)
GB/T 3768, Acoustics - Determination of sound power levels and sound energy
levels of noise sources using sound pressure - Survey method using an enveloping
measurement surface over a reflecting plane
GB 4793.1-2007, Safety requirements for electrical equipment for measurement,
control, and laboratory use - Part 1: General requirements
GB 4793.7-2008, Safety requirements for electrical equipment for measurement
control and laboratory use - Part 7: Particular requirements for laboratory centrifuges
GB/T 14710, Environmental requirement and test methods for medical electrical
equipment
3 Terms and definitions
The following terms and definitions are applicable to this document.
3.1
Laboratory centrifuge
4 Product classification
4.1 Centrifuges are classified into bench-top centrifuges and floor type centrifuges
according to their structure.
4.2 Centrifuges are classified into low speed centrifuges, high speed centrifuges and
super speed centrifuges according to the rotational speed.
4.3 Centrifuges are classified into refrigerated centrifuges and non-refrigerated
centrifuges according to their functions.
5 Conditions of use
5.1 Environmental conditions
The centrifuge shall be used under the following environmental conditions:
a) indoor;
b) temperature 5 °C ~ 35 °C;
c) relative humidity not more than 80%;
d) atmospheric pressure 86 kPa ~ 106 kPa;
e) no direct sunlight, nor direct radiation from other heat sources;
f) pollution level 2, no conductive dust, explosive gas, high-concentration dust or
corrosive substances around;
g) no strong vibration or airflow around.
5.2 Power supply conditions
The power supply for the centrifuge shall meet the following conditions:
a) rated voltage AC 220 V or 380 V, with the allowable deviation of -10% ~ +10%
from the rated value;
b) rated frequency 50 Hz, with the allowable deviation of ±2% from the rated value.
6 Requirements
6.1 Appearance
6.1.1 The surface of the centrifuge shall be flat; characters and signs shall be clear.
6.1.2 The coating layer of the centrifuge shall be uniform in color, without bottom
exposure, peeling, blistering, burrs, spots and obvious scratches.
6.2 Weight deviation of rotating components
The nominal weight of centrifuge tubes (bottles), centrifuge cups, and rubber gaskets
in each group shall be equal, and the deviation of the actual weight shall not be greater
than ±2 g.
6.3 Relative deviation of rotational speed
Under the rated voltage and the maximum load corresponding to the maximum speed
of the centrifuge, the maximum relative deviation of speed of the low speed centrifuge
is ±2.5%, and the maximum relative deviation of speed of the high speed centrifuge is
±1%.
6.4 Speed stability
Under the rated voltage and the maximum load corresponding to the maximum speed
of the centrifuge, the instability of speed shall not be greater than 1%.
6.5 Noise
6.5.1 For the noise emitted by the centrifuge under the rated voltage and the maximum
load corresponding to the maximum speed, the A-weighted emission sound pressure
level LpA at the operator (or observer) position and at a distance of 1 m from the surface
of the centrifuge shall not be greater than 70 dB (where the reference sound pressure is
20 μPa). If it exceeds, the manufacturer shall specify in its technical documentation the
protective measures to be taken by the responsible department using the equipment.
6.5.2 The A-weighted sound power level LWA (where the reference sound power is 1
pW) of the noise emitted by the centrifuge should be specified in the manufacturer’s
technical documentation.
6.6 Temperature rise
The temperature rise of the test solution in the centrifuge tube (bottle) shall not exceed
12 °C after the non-refrigerated centrifuge runs for 15 minutes under the rated voltage
and the maximum load corresponding to the maximum speed.
6.7 Time for speed raising and reduction
The time for speed raising and reduction of the centrifuge are shown in Table 1.
The centrifuge shall be provided with the door cover self-locking function. When the
door cover is opened, the centrifuge cannot be started; when the door cover is closed,
and the centrifuge is running, the door cover cannot be opened; in the event of a power
failure, there shall be an emergency unlocking device and only special tools can be used
to open the door cover.
6.10 Environmental adaptability
Under the condition where the centrifuge is well packaged, carry out the environmental
test according to the provisions of GB/T 14710. After the test, open the package for
testing, where the results shall meet the requirements of 6.3 ~ 6.9.
7 Test methods
7.1 Main test instruments and equipment
Names and requirements of the main test instruments and equipment are as follows:
a) balance, with the calibration division value of 1 g;
b) speedometer, with an accuracy of 0.1%;
c) spot-thermometer, with the maximum allowable error of ±0.5 °C;
d) electronic stopwatch, with the maximum allowable error of ±1 s;
e) 2-level sound level meter.
7.2 Test conditions
The test conditions of the centrifuge shall meet the following requirements:
a) The ambient temperature is 20 °C ± 5 °C;
b) The relative humidity is not more than 80%;
c) AC power supply: The rated voltage is 220 V or 380 V, with a tolerance of ±1%;
the rated frequency is 50 Hz, with a tolerance of ±1%; the harmonic distortion is
less than 5%;
d) There is no direct sunlight, nor direct radiation from other heat sources;
e) The pollution level is 2; there is no conductive dust, explosive gas, high-
concentration dust or corrosive substances around;
f) There is no strong vibration or airflow around.
7.3 Appearance inspection
7.7 Noise test
7.7.1 The measurement method of the A-weighted sound pressure level of the noise
emitted by the centrifuge is as follows: