| NEWS and REPORTS PAGE
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| Here you
find the latest news on the Institute's activities. Some of the news items are of general interest and might be interesting for all visitors. Other items are especially for participants of our interlaboratory studies. To jump directly to some specific items click on the below links: - report forms - final reports - news
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| News items for all visitors | |
| Jan. 2012 | The planned proficiency test iis12C02 on ETBE has been cancelled. Regretfully it was not possible to find a sufficient number of laboratories to participate. |
| Dec. 2011 |
The number of interested laboratories for participation in the PT on AZO dyes in leather iis12A01L has reached its limit due to the limited amount of available samples.
The enrollment for this PT therefore is closed per direct and no registrations for this PT can be accepted anymore. The start of the proficiency test iis11S04E for Ethylene, originally set at 2 December 2011, has been delayed. Regretfully during the preparation of this PT, unexpected delivery problems were encountered. The actual starting date is yet unknown. |
| Nov. 2011 | The samples for the -one month delayed- proficiency test iis11S03P for liquefied propane will be dispatched to the 30 participating laboratories on 10 and 11 November. |
| Oct. 2011 | The start of the proficiency test iis11S03P for liquefied propane, originally set at 12 October 2011, has been delayed. Regretfully during the preparation of the samples to be used in this PT, unexpected problems were encountered. The actual dispatch date is yet unknown. |
| Aug. 2011 | After the issue of the final report iis11C04 on benzene one of the participating laboratories questioned the assigned value for purity (99.9046 %M/M) in July 2011. An investigation revealed that the assigned values for GC-impurities and GC-purity as reported in our report iis11C04 of June 2011 indeed may be incorrect due to the unexpected presence of nonane in the sample. The full results and the conclusions of this investigation can be downloaded here. |
| June 2011 | The new program for August 2011 - December 2012 is now available. The new program does contain one new PT on Ethylene. Also the recently started PT on Avgas LL100 (aviation gasoline) is present again. |
| Mar. 2011 | After the issue of the final report iis10C12a on ethanol (Fuel- / Bio-) one of the participating laboratories did send us an e-mail on the evaluation of iso amylalcohol in February 2011. It wondered why the sum of 2- and 3-methyl-1-butanol was used and wondered whether this was correct. An investigation revealed that erratically the sum of 2- and 3-methyl-1-butanol was used by iis for evaluation of the iso amyl test results. The full results and the conclusions of this investigation can be downloaded here and the corrected PT report here. |
| Feb. 2011 | After the issue of the final report iis10G05 on B100 (biodiesel) one of the participating laboratories questioned the assigned value for free glycerol. An investigation revealed that the claim of this laboratory was correct. Consequently a significant number of laboratories that participated in PT iis10G05 did report a false positive test result for free glycerol. The results and the conclusions of this investigation can be downloaded here. |
| Jan. 2011 | The planned proficiency tests on propylene oxide iis11C01 and on phenol iis11C03 have both been cancelled. Regretfully it was not possible to find a sufficient number of laboratories that were interested in participation in these two round robins. |
| Oct. 2010 | It was decided to withdraw the accreditation for two petrochemicals: MTBE and Acetone. This decision was made after the RvA decision to increase the requirement for the minimum number of tests necessary to determine homogeneity of a batch of sub samples from 4 to 8. Due to this increase the testing costs for these small (20-25 participating laboratories) proficiency tests doubled. In our opinion the laboratory community will be better served with an affordable proficiency test that is not accredited than with a very expensive, although accredited proficiency test. |
| Sept. 2010 | The planned proficiency test on polyetherpolyols iis10C11 has been cancelled. Regretfully it was not possible to find a sufficient number of laboratories that were interested in participation in this round robin. |
| June 2010 | The new program for August 2010 - December 2011 is now available. The new program does contain one new PT on aviation gasoline. Also the recently started PT on Migration of certain element (EN71-3) is present again. |
| May 2010 | A participant pointed us to an error in the final report iis10A03T for AZO dyes in textile. Therefore a corrected report was prepared that can be downloaded here. |
| Mar. 2010 | The start of the proficiency test iis10S01M for Natural Gas, originally set at 3 March 2010, has been postponed until 23 March 2010. Regretfully the samples to be used in this PT were not yet available on 26 February 2010 and some more time is needed to verify the suitability of the samples. |
| Feb. 2010 | A participant pointed us to an error in the final report iis09R02X for Crude Assay. Therefore three pages of the report were corrected. The erratum with the corrected pages 22, 25 and 29 can be downloaded here. |
| Feb. 2010 | The protocol used by iis for the organization of interlaboratory studies was recently updated. This new version (3.2) is available here. A hard copy is available on request. |
| Jan. 2010 | Due to the Chinese New Year holidays (February 6-21, 2010) many Chinese laboratories requested us to postpone the deadline for reporting results for the upcoming 4 PTs. Therefore the deadlines for the PTs on total lead in paint, migration of elements, pesticides in textile and OPP/PCP in textile are extended with one week to March 5 for pesticides and OPP/PCP and to March 19 for total lead in paint and migration of elements. |
| Dec. 2009 |
Please note the changes and additions for the PT program of spring 2010:
- The planned PT for total lead in paint (iis10V01) is postponed from 13 January 2010 to 10 February 2010. - A new PT (iis10V02) is organised on request of several participating laboratories in the regular PT program for consumer goods (RoHS). The migration of metals in paint is evaluated in this new PT in accordance with EN71-3. - The PT on AZO dyes in leather is back in the iis PT program. Last year this PT had to be cancelled due to lack of suitable material. But assisted by a participating laboratory, this PT (iis10A03L) is now again in the spring program. |
| Oct. 2009 | During the recent accreditation audit discussions with the technical auditor about the statistics used, have led to several adjustments of the iis quality system. The implications for the laboratories that participate in the iis PT scheme are neglectable. |
| Sept. 2009 | A new employee Mr. Dennis van Leent has started as assistant program co-ordinator. The increase of personnel was necessary to maintain the high quality level of iis. |
| Aug. 2009 | The interest in the recently issued iis PT program for 2009/2010 is overwhelming and the maximum number of participants has already been reached for two rounds, being the Particle Size Distribution iis09J02PS and the gasoil (automotive diesel) iis09G05. Therefore no further registrations can be accepted for these two proficiency tests. Another round for Particle Size Distribution on Jet Fuel A1 will be organized in March 2010 and for gasoil in February 2010. |
| July 2009 | The regular annual Proficiency Test for food grade ethanol is expanded. After receiving several requests to introduce spirit and liquor samples into our PT program, it was decided to provide support for this request. See here for more information on this update. |
| June 2009 | The new program for August 2009 - December 2010 is now available. The new program does contain one new PT: Flame retardants in plastics. Also the recently started new PTs on Total Lead in Paint, on Methane (Natural Gas), and on liquefied propane and liquefied butane are present. In the new program regretfully no AZO dyes in leather PT was planned because of lack of suitable materials. Also, it was decided not to continue the PTs on Pygas and Pure Plant Oil (PPO), due to lack of interest for these PTs. |
| May 2009 | After issue of the final report on phthalates in plastic it was discovered that this report contained many incorrect z-scores and assigned values. Although the discrepancies are rather small, it was decided to issue a corrected report to replace the original report. You can download the corrected report here. We apologize for any inconveniences caused by the erratic values in the original report. |
| April 2009 | After a successful testing and evaluation period, the new 500 L mixing tank was upgraded with an electric valve controlled by a Sartorius balance. In this way the amount of sample added to each (dark brown coloured) bottle can be set to a fixed weight and the chance to overfill a bottle is minimized. |
| Feb. 2009 | The proficiency test iis09A03L for AZO Dyes in leather has been cancelled. Regretfully, this time it appeared to be impossible to get a suitable homogeneous leather material to investigate. We are now looking for other possibilities to obtain such materials. Please do contact us urgently in the case that you feel that you may be able to assist us in the preparation or in the purchase of any suitable leather materials. |
| Feb. 2009 | The planned proficiency test iis09C04 for polyols has been cancelled. Regretfully it was not possible to find a sufficient number of laboratories that were interested in participation in this round. In stead a new proficiency test will start. The samples for the lead in paint PT will be dispatched to the 74 participating laboratories March 18. |
| Jan. 2009 | The planned round robin iis09GIP for evaluation of IP 387 on Gasoil has been cancelled. Regretfully it was not possible to find a sufficient number of laboratories that were interested in participation in this round. And therefore it was decided to cancel this round robin. |
| Jan. 2009 | Starting this month gasoline, gasoil and kerosene samples may be prepared using the new 500 L mixing tank that was constructed and tested end 2008. This will make it possible to prepare larger amounts of identical samples than before, when 200 L was the maximum sample amount to be used for preparation. |
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