Global Gas and LNG Proficiency Testing Scheme 
| Global Gas and LNG PT Scheme - Further Infomation |
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Frequency This global proficiency testing scheme is run four times per year (January, April, July & October) for all four gas mixtures shown below.
Cylinders Mixtures 1 & 3 are supplied in 1 litre water capacity high pressure cylinders at approximately 30 bar. Mixtures 2 & 4 are supplied in 5 litre water capacity high pressure cylinders at 4 and 50 bar respectively.
Reporting Participants are required to report the composition and an estimate of the uncertainty and some physical properties of the gas where appropriate using on-line reporting software. Evaluation Evaluation will be using ILAC G13 approved methods including En ratio and Z scores. Confidentiality As mandated by ILAC G13 and ISO 17043, all data including participants and performance will be kept strictly confidential. Only the submitting laboratory will receive feedback on their performance. Performance data will be reported to the whole group anonymously. |
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