GB/T 21186-2007 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 21186-2007 | English | 150 |
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Fourier transform infrared spectrometer
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GB/T 21186-2007: Fourier transform infrared spectrometer---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT21186-2007
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 71.040.01
N 53
Fourier transform infrared spectrometer
Issued on. SEPTEMBER 12, 2007
Implemented on. MAY 01, 2008
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the PRC;
Standardization Administration of the PRC.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Requirements... 4
4 Test methods... 7
5 Inspection rules... 10
6 Marking, packaging, transportation, and storage... 13
7 Quality assurance... 14
Foreword
This Standard was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of Subcommittee 6 on Analytical
Instrument, National TC124 on Industrial Process Measurement, Control and
Automation of SAC (SAC/TC 124/SC 6).
Drafting organizations of this Standard. Beijing Beifen-Ruili Analytical
Instrument (Group) Co., Ltd., Tianjin University, Peking University, China Invent
Instrument Tech. Co., Ltd., Beijing Institute of Metrology, SINOPEC Research
Institute of Petroleum Processing.
Main drafters of this Standard. Wang Baihua, Gao Xuejun, Fan Shifu, Weng
Shifu, Zhang Xinmin, Zang Jiapeng, Xu Guangtong.
This Standard is issued for the first time.
Fourier transform infrared spectrometer
1 Scope
This Standard specifies the requirements, test methods, inspection rules,
marking, packaging, transportation, storage, quality assurance, etc. of Fourier
transform infrared spectrometer.
This Standard applies to the Fourier transform infrared spectrometer of the
measuring band in the mid-infrared region (hereinafter known as “instrument”
for short).
2 Normative references
The following documents contain provisions which, through reference in this
Standard, constitute provisions of this Standard. For the dated references, their
subsequent amendments (excluding corrections) or revisions do not apply to
this Standard. However, the parties who enter into agreement based on this
Standard are encouraged to investigate whether the latest editions of these
documents are applicable. For undated reference documents, the latest
editions apply to this Standard.
GB/T 191-2000 Packaging - Pictorial marking for handling of goods (eqv ISO
780.1997)
GB/T 2829-2002 Sampling procedures and tables for periodic inspection by
attributes (Apply to inspection of process stability)
GB/T 15464-1995 General-purpose specification for the packaging of
instrumentation products
JB/T 9329-1999 Basic environmental conditions and testing methods for
instruments transportation and storage in the transportation
3 Requirements
3.1 Normal working conditions of instrument
3.2 Background spectral energy distribution
The energy value at 4000 cm-1 shall be no less than 20% of the energy value
at the highest point.
3.3 100%τ line tilt range
The tilt range of the multi-band 100%τ line of the instrument is shown in Table
1.
3.5 Transmittance repeatability
The transmittance repeatability of the instrument shall be no more than 0.5%τ.
3.6 Resolution
The highest resolution of the instrument shall be selected from 4 cm-1, 2 cm-1,
1 cm-1, 0.5 cm-1, 0.25 cm-1, and 0.125 cm-1.
4 Test methods
4.1 Test conditions
4.2 Background spectral energy distribution
SET the resolution to 4 cm-1.The scanning speed is placed at the optimal
position. The number of scans is 32.
4.3 100%τ line tilt range
Same as 4.2 setting. The air background spectrum and the air sample spectrum
are collected. The 100%τ line is measured. The transmittances of wave-number
segments of 800 cm-1~500 cm-1, 2200 cm-1~1900 cm-1, 3200 cm-1~2800 cm-1,
and 4400 cm-1~4000 cm-1 are measured respectively.
4.4 100%τ line noise
Same as 4.2 setting. The air background spectrum and the air sample spectrum
are collected. Obtain the 100%τ line. The RMS values of transmittances of
wave-number segments of 1000 cm-1~900 cm-1, 2200 cm-1~2100 cm-1 (or 2100
cm-1~2000 cm-1), and 4100 cm-1~4000 cm-1 are calculated.
4.6 Resolution
4.6.1 SET the highest resolution of the instrument. The scanning speed is
placed at the optimal position. The number of scans is 32.
4.7 Wave-number accuracy
4.7.1 For instruments with a resolution better than 0.5 cm-1 (including 0.5 cm-1),
SET the highest resolution of the instrument. The scanning speed is placed at
the optimal position. The number of scans is 32.The apodization function is
BOXCOR. The instrument diaphragm is at the minimum.
4.8 Wave-number repeatability
4.8.1 For instruments with a resolution better than 0.5 cm-1 (including 0.5 cm-1),
SET the highest resolution of the instrument. The scanning speed is placed at
the optimal position. The number of scans is 32.The apodization function is
BOXCOR. The instrument diaphragm is at the minimum. COLLECT the
background spectrum. PUT in the gas cell filled with carbon monoxide gas (see
Table 3 for the pressure), to collect the sample’s transmittance spectrum. The
accuracy of carbon monoxide gas 2193.36cm-1 is measured. The measurement
is repeated 6 times in succession. Take the difference between the maximum
and the minimum.
4.9 Safety tests
No. Absorption peak position
4.9.1 Insulation resistance
The power plug of the instrument is not connected to the grid. The power switch
is placed in the on position. USE an insulation resistance meter to apply a 500
V DC test voltage between the phase-to-center connection of power plug and
and the ground wire. After 5 s of stabilization, the insulation resistance is
measured.
4.10 Instrument appearance
Visual and hand touch inspection.
4.11 Instrument completeness
Visual inspection.
4.12 Transportation, storage in the transportation
It shall be carried out according to the methods of 4.1~4.5 in JB/T 9329-1999.
5 Inspection rules
5.1 Inspection classification
The inspection of the instrument is classified into exit-factory inspection and
type inspection.
5.2 Exit-factory inspection
5.3 Type inspection
5.3.1 The instrument shall, in any of the following cases, in accordance with the
requirements of 3.2~3.12, be subjected to type inspection.
5.3.2 Samples for type inspection shall be randomly selected from instruments
which have passed the exit-factory inspection.
5.3.5 If the type inspection is qualified, the lot which has passed the exit-factory
inspection, as a qualified product, can leave the factory or be put in storage. If
the storage is more than 12 months before leaving the factory, the exit-factory
inspection shall be carried out again.
6 Marking, packaging, transportation, and storage
6.1 Marking
6.1.1 Instrument marking
6.1.2 Packaging marking
6.2 Packaging
6.2.1 The packaging of the instrument shall comply with the provisions of
moisture-proof and shock-proof packaging in GB/T 15464-1995.
6.2.2 Instrument accompanying documents
6.3 Transportation
The instrument, when the package is complete, can be transported by general
means of transport.
6.4 Storage
When the instrument is in the packaged state, it shall be stored in the room
where the ambient temperature is 0°C~40°C, the relative humidity shall not be
more than 85%, and the air shall not contain corrosive gases.
7 Quality assurance
Under the condition that the user complies with the rules of custody and use,
when the instrument, within 12 months from the date of delivery, fails to work
normally due to poor manufacturing quality, the manufacturer shall repair or
replace the parts for the user for free (excluding the replacement of quick-wear
and vulnerable parts).
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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