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ISO 9360-1 Medical Test Equipment Weighing Accuracy Of ±0.1 G
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Brand Name:KingPo
Model Number:ISO 9360-1
Certification:calibration cert
Payment Terms:T/T
Delivery Time:30 days
Company Data
Verified Supplier
Contact Person
Lynette Wong
Business Type:
Manufacturer
Officials:
RM C, 13/F, HARVARD COMMERCIAL BUILDING, 105-111 THOMSON ROAD, WAN CHAI, HK
Quality:
Quality Certifitation Available
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Product Details
Company Profile
Product Details
ISO 9360-1 Anaesthetic and respiratory equipment –Heat and moisture
exchangers (HMEs) for humidifying respired gases in
humans –Part 1: HMEs for use with minimum tidal volumes of 250 ml
humans –Part 1: HMEs for use with minimum tidal volumes of 250 ml
Measurement of moisture loss- HME
6.2 Measurement of moisture loss
6.2.1 Principle
The performance of an HME shall be measured by recording the mass of water lost from the test apparatus specified in 6.2.2.
6.2.2 Test apparatus
The test apparatus (Figure 1 ) shall comprise the following components.
6.2.2.1 Bidirectional flow generator.
This is a mechanically-driven piston used to produce a flow having sinusoidal waveform.
6.2.2.2 Humidity generator (HG), consisting of
a) a heated water bath (Figure 2) through which air is bubbled in both directions;
b) a rigid cylindrical reservoir (Figure 3) with a maximum volume of 7 l and a diameter of approximately 1 50 mm,containing a 2 l reservoir bag;
c) a thermally insulated chamber (Figure 4), which contains the water bath, the reservoir and a heat source.
6.2.2.3 Air delivery system (Figure 5), consisting of a T-piece with an internal diameter greater than 1 5 mm, and an exhaust tube at least 200 mm in length.
6.2.1 Principle
The performance of an HME shall be measured by recording the mass of water lost from the test apparatus specified in 6.2.2.
6.2.2 Test apparatus
The test apparatus (Figure 1 ) shall comprise the following components.
6.2.2.1 Bidirectional flow generator.
This is a mechanically-driven piston used to produce a flow having sinusoidal waveform.
6.2.2.2 Humidity generator (HG), consisting of
a) a heated water bath (Figure 2) through which air is bubbled in both directions;
b) a rigid cylindrical reservoir (Figure 3) with a maximum volume of 7 l and a diameter of approximately 1 50 mm,containing a 2 l reservoir bag;
c) a thermally insulated chamber (Figure 4), which contains the water bath, the reservoir and a heat source.
6.2.2.3 Air delivery system (Figure 5), consisting of a T-piece with an internal diameter greater than 1 5 mm, and an exhaust tube at least 200 mm in length.
6.2.2.4 Weighing equipment, with an accuracy of ±0,1 g or better in the range of the mass to
be measured.
6.2.2.5 Flowrate measuring equipment, with an accuracy of at least 5 % of the reading.
6.2.2.6 Calibration HME (Figure 6) consisting of a housing containing 81 polyvinyl chloride (PVC) tubes arranged in a 9 * 9 array, each with an internal diameter of 2 mm, an external diameter of 4 mm, and a length of 50 mm.
When the apparatus has been constructed and operated as specified in 6.2.2, the moisture loss from the humidity generator with the calibration HME will be as shown in Table 3.
6.2.2.5 Flowrate measuring equipment, with an accuracy of at least 5 % of the reading.
6.2.2.6 Calibration HME (Figure 6) consisting of a housing containing 81 polyvinyl chloride (PVC) tubes arranged in a 9 * 9 array, each with an internal diameter of 2 mm, an external diameter of 4 mm, and a length of 50 mm.
When the apparatus has been constructed and operated as specified in 6.2.2, the moisture loss from the humidity generator with the calibration HME will be as shown in Table 3.
Key
1 to 1 9 see annex A
20 Sinewave generator inlet
21 Air outlet
22 Dry air supply (23 ±1 ) °C, ＜ 1 mg H 2 O per litre air
23 Weighing equipment
1 to 1 9 see annex A
20 Sinewave generator inlet
21 Air outlet
22 Dry air supply (23 ±1 ) °C, ＜ 1 mg H 2 O per litre air
23 Weighing equipment
Figure 1 — Test apparatus side view
6.2.3 Test conditions
6.2.3.1 The air delivered to the HME machine port by the air delivery system shall be at a temperature of 23±1℃ and shall have a humidity not exceeding 1 mg.l -1
6.2.3.2 The HME shall be tested at those conditions specified in Table 2 which are within the range specified for the HME by the manufacturer, at the maximum tidal volume recommended by the manufacturer if this value is greater than 1 l, at a frequency of 1 0 breaths.min -1 , and an I:E ratio of 1 :1 .
6.2.4 Procedure
6.2.4.1 Connect the HG to the bidirectional flow generator.
6.2.4.2 Adjust the bidirectional flow generator to give one of the test conditions in Table 2, measured at the machine port of the HME, within the operating range of the HME as specified by the manufacturer. Adjust the flowrate of air delivered by the air delivery system to be between >1 and <1 ,5 times the peak flowrate of air drawn into the machine port of the HME. The peak flowrate is stated in Table 2.
6.2.4.3 Operate the test apparatus with an HME of the same type that is to be tested for a minimum of 1 h,with the water bath at a temperature of 37 ±0.5℃ , and the air within the insulated chamber at temperature of 37 ±1℃ . Maintain this temperature for the duration of the test procedure.
6.2.4.4 Confirm that the volume of air leaving the machine port of the HME is that required for the test condition chosen from Table 2.
6.2.4.5 Record the mass of the HG only (i.e. not including the HME) (m 0 ).
6.2.4.6 Replace the HME with the one to be tested and operate the test apparatus for (60 ? 5) min.
6.2.3.1 The air delivered to the HME machine port by the air delivery system shall be at a temperature of 23±1℃ and shall have a humidity not exceeding 1 mg.l -1
6.2.3.2 The HME shall be tested at those conditions specified in Table 2 which are within the range specified for the HME by the manufacturer, at the maximum tidal volume recommended by the manufacturer if this value is greater than 1 l, at a frequency of 1 0 breaths.min -1 , and an I:E ratio of 1 :1 .
6.2.4 Procedure
6.2.4.1 Connect the HG to the bidirectional flow generator.
6.2.4.2 Adjust the bidirectional flow generator to give one of the test conditions in Table 2, measured at the machine port of the HME, within the operating range of the HME as specified by the manufacturer. Adjust the flowrate of air delivered by the air delivery system to be between >1 and <1 ,5 times the peak flowrate of air drawn into the machine port of the HME. The peak flowrate is stated in Table 2.
6.2.4.3 Operate the test apparatus with an HME of the same type that is to be tested for a minimum of 1 h,with the water bath at a temperature of 37 ±0.5℃ , and the air within the insulated chamber at temperature of 37 ±1℃ . Maintain this temperature for the duration of the test procedure.
6.2.4.4 Confirm that the volume of air leaving the machine port of the HME is that required for the test condition chosen from Table 2.
6.2.4.5 Record the mass of the HG only (i.e. not including the HME) (m 0 ).
6.2.4.6 Replace the HME with the one to be tested and operate the test apparatus for (60 ? 5) min.
6.2.4.7 Record the mass of the HG only (i.e. not including the HME)
(m 1 ).
6.2.4.8 Continue to operate the test apparatus up to the maximum time of use recommended by the
manufacturer.
6.2.4.9 Record the mass of the HG only (i.e. not including the HME) (m 2 ).
6.2.4.10 Confirm that the volume of air leaving the machine port of the HME is that required for the test condition chosen from Table 2.
6.2.4.8 Continue to operate the test apparatus up to the maximum time of use recommended by the
manufacturer.
6.2.4.9 Record the mass of the HG only (i.e. not including the HME) (m 2 ).
6.2.4.10 Confirm that the volume of air leaving the machine port of the HME is that required for the test condition chosen from Table 2.
6.2.4.11 Calculate the HME moisture loss for the first hour, M 1 ,
using the formula
M 1 = (m 0 -m 1 ) /V 1
where
m 0 is the initial mass of the HG;
m 1 is the mass of the HG after 1 h;
V 1 is the total volume of air leaving the HME machine port during the first hour of the test.
6.2.4.12 Calculate the HME moisture loss for the entire duration, M max , using the formula
M max = (m 0 - m 2 ) /V 2
where
m 0 is the initial mass of the HG;
m 2 is the mass of the HG after the maximum time of use as recommended by the manufacturer;
V 2 is the total volume of air leaving the HME machine port during the entire test period.
6.2.4.13 Repeat the procedures in 6.2.4.2 to 6.2.4.1 2 for all the test conditions given in Table 2 which are within
the operating range of the HME as specified by the manufacturer.
When the apparatus has been constructed and operated as specified in 6.2.4, the moisture loss from the humidity generator with the calibration HME attached should be as shown in Table 3. This shall be confirmed for the specific test apparatus by conditioning the test apparatus for at least 2 h (see 6.2.4.3), and then operating the test apparatus for a period of 2 h with the calibration HME, and measuring the mass loss over that period (all mass measurements shall be made without the HME attached to the test apparatus).
M 1 = (m 0 -m 1 ) /V 1
where
m 0 is the initial mass of the HG;
m 1 is the mass of the HG after 1 h;
V 1 is the total volume of air leaving the HME machine port during the first hour of the test.
6.2.4.12 Calculate the HME moisture loss for the entire duration, M max , using the formula
M max = (m 0 - m 2 ) /V 2
where
m 0 is the initial mass of the HG;
m 2 is the mass of the HG after the maximum time of use as recommended by the manufacturer;
V 2 is the total volume of air leaving the HME machine port during the entire test period.
6.2.4.13 Repeat the procedures in 6.2.4.2 to 6.2.4.1 2 for all the test conditions given in Table 2 which are within
the operating range of the HME as specified by the manufacturer.
When the apparatus has been constructed and operated as specified in 6.2.4, the moisture loss from the humidity generator with the calibration HME attached should be as shown in Table 3. This shall be confirmed for the specific test apparatus by conditioning the test apparatus for at least 2 h (see 6.2.4.3), and then operating the test apparatus for a period of 2 h with the calibration HME, and measuring the mass loss over that period (all mass measurements shall be made without the HME attached to the test apparatus).
Company Profile
KingPo Technology Development Limited
Kingpo Technology Development Limited is a pioneer and leader of global safety testing equipment manufacturer.We offer one-stop service for worldwide labs from R&D,testing,production to after-sales service.We dedicate ourselves in achieving optimal production quality for our customers,reduce cost and enhance enterprise’s international competitiveness.
Kingpo is accredited by International Electrotechnical Commission(IEC) and becomes a nominated supplier and is officially issued a CBTL certificate.We are now among the world’s leading laboratory testing equipment manufacturer to produce the highest level and more standard testing equipment for global Electrotechnics labs becoming nominated supplier of NEMKO,UL,PHILIPS,CTK,CVC(Vkan Certification & Testing Co.,Ltd),Dongguan Quality Testing,China Household Electric Appliance Research Institute,Russia National Standard Institute,Belarus National Standard Institute,Korea National Standard Institute,etc.Lamp cap gauges and testing equipments produced by Kingpo,which are calibrated by CNAS and ilac-MRA ,have a high international reputation.
Kingpo aims at manufacturing world class testing equipment for Chinese labs,establishing an independent R&D center and introducing foreign state-of-the-art technology and international high-tech talents.Adopting a creative design concept,taking sensor data acquisition as forerunner,computer control technology as lead,imported transmission device with high accuracy and low noises,we have developed more than one hundred and sixty products.
Lab software Lims system
Material combustibility testing equipment
ELectric tool testing equipment
Plug and socket testing equipment
Switch service life testing equipment
Electrical accessories testing equipment
Luminaire testing equipment
Household appliances testing equipment
Anti water spray testing equipment
Wire and cable testing equipment
IT product testing equipment
Battery testing equipment
Kingpo’s domestic customers include Entry-Exit Inspection and Quarantine Bureau, Bureau of Technical Supervision,Product Quality Supervision and Inspection Institute,UL Lab(Underwriter Laboratories),TUV Rheinland,SGS and other electronic manufacturer.Our products are exported to international market and have also established distributorships in HK,Vietnam,Singapore,Thailand,Iran,India,
Africa,New Zealand,Australia ,Germany and so on.
Service is an essential factor to improve enterprise’s competitiveness.Therefore,Kingpo has always made every effort in improve service level and service value.Before sale,we have professional engineering team to provide customers with comprehensive consultant and customized service.After sale,we have after-sale team to offer customer timely and satisfying technical support and product maintenance.
By means of excellent product competitiveness and complete service,our company has won numerous customers high praise and sincere trust.In complying with technical improvement and increased efficiency and quality assurance of these products ,we insist on providing high end products to market and dedicating to being a leader in testing equipment industry.
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