Liquid Measurement Installations /M d l T iModular Testing
Part 1
Wim Volmer NMi Certin BVWim Volmer, NMi Certin BV
ContentsContentsPart 1:• MID vs. OIML & API• Scope MI-005p
• 30 minutes (hopefully less)• 30 minutes (hopefully less)
7-7-2010
2
MID vs API & OIML#1MID vs. API & OIML#1
The good news:The good news:• They are not in conflict
7-7-2010
4
MID vs API & OIML#2MID vs. API & OIML#2
The bad news:The bad news:• There are differences
7-7-2010
5
APIAPI• No status under MID• Legal Metrology:
– Span of API declining– Span of OIML growing
• Suggestion: start looking at OIMLSuggest o sta t oo g at O
• Please know OIML cooperates with WTO ISO d hWTO, ISO and others
7-7-2010
6
OIMLOIML• R117-1 Normative Document under
MIDMID
Advantages:• Clarifies "suitable for use"Clarifies suitable for use• Provides a basis for solving a
fundamental MID challengefundamental MID challenge
7-7-2010
7
Scope MI-005Scope MI 005• Measuring SYSTEMS for Liquids
h h Wother than Water• Legal term: "Measuring
Instrument"• Continuous and dynamic y
measurement (not level gauging)• Including cryogenics (e g LNG)Including cryogenics (e.g. LNG)• Not restricted to Fuels
7-7-2010
9
Typical SystemTypical System
Flow computer
Printer DCS
GSupply Receiver
Gas Elimination / Prevention Meter
Transferpoint
7-7-2010
11
Problem sketchProblem sketch• Users wants:
– Meter Make A– Flowcomputer Make B– His existing piping
• Law: 1 single Manufacturerg• Will A apply for Approval of A and
B and the rest?B and the rest?• Will B handover documentation?• What to do about pre MID parts• What to do about pre-MID parts
combined with MID parts? (later today)today)
7-7-2010
12
Please knowPlease know …• A fully modular Approach would
h b bl i !!!have been problematic too!!!
• How to combineModules?
• Local authorities arelikely to implementlikely to implementnational legislation-> (barrier to trade)> (barrier to trade)
7-7-2010
13
SummarySummary• No problem with the standards
• What they call an "instrument"y• We consider as a collection of
devicesdevices
Th l l ibilit i il t l• The legal responsibility is unilateral• The production responsibility is
multilateral• Or, MID is not modular,
7-7-2010
14
Liquid Measurement Installations /M d l T iModular Testing
Part 2
Wim Volmer NMi Certin BVWim Volmer, NMi Certin BV
ContentsContentsPart 2:• EC Type Examination Certificate• Evaluation / Part Certificate
– Barrier to Trade?
• 30 minutes (or slightly over)
7-7-2010
18
WelmecWelmec
• WG10 recognised the problemWG10 recognised the problem• WG10 Participants:
Authorities / Regulators– Authorities / Regulators– Manufacturers
N tifi d B di– Notified Bodies
• WG8 made the proposal• We had to work fast with what we had
7-7-2010
20
Voluntary Modular ApproachVoluntary Modular ApproachBasic idea:• Producers obtain "Part Approvals"• Single entity has combinationSingle entity has combination
Approved
Challenge:• Who accepts responsibility?
7-7-2010
21
Necessity for Producer & UserNecessity for Producer & User
• Because they need to combine componentscomponents
7-7-2010
23
Practical issuesPractical issues• (Part) Approvals contain
confidential information• Party A does not want to "sell" party y p y
B's instruments• Party B does not want his CertificationParty B does not want his Certification
investment to be abused• Party C only makes flowcomputers• Party C only makes flowcomputers• …
7-7-2010
24
Available options (for now)Available options (for now)• EC Type Examination Certificate for
h l Ithe complete Instrument
EC T E i ti C tifi t• EC Type Examination Certificate based on:– Evaluation Certificates– Part Certificates
7-7-2010
25
Essence of Modular ApproachEssence of Modular Approach• Voluntary
– Both in application and acceptance
• Restricted (for now) to OIML R117-1 Constituent Elements
• Each "Part Producer" obtains Certification against MID
• Allows others to use that implicitly• Allows others to use that implicitly or explicitly
7-7-2010
27
Part CertificatePart Certificate• States compliance with relevant
irequirements• Describes the Part• Documents the Part• Truely detailed information on fileTruely detailed information on file
U t i t d• Unrestricted use
• So anybody can use that Certificate / that flowcomputerp
7-7-2010
28
Evaluation CertificateEvaluation Certificate• States compliance with relevant
irequirements• Describes the Part• Documents the Part• Truely detailed information on fileTruely detailed information on file
R t i t d• Restricted use• So nobody can use that Certificate /
that flowcomputer without permission
7-7-2010
29
Trusted Third PartyTrusted Third PartyFor Evaluation Certificates:• Authorities may ask for detailed
information• Type Approval file only to
Authorities in court cases• EC Approval, Description and
Documentation only to authoritiesDocumentation only to authorities
O t A l t t• Owner system Approval accepts not seeing details Evaluation Certificate
7-7-2010
30
Pre-summaryPre summary• An owner / end-user can become
li / f fapplicant / manufacturer of complete Measuring Instrument
• Possible to keep sensitive pinformation off the street
• Manufacturers / producers can block competitor's Certificationcompetitor s Certification
7-7-2010
31
Is it a Barrier to Trade?Is it a Barrier to Trade?Legally speaking NO, because:• Everyone can apply for
another Approval in his name• A (Part) Approval is not Public
Propertyp y
• Or you are not allowed to drive• Or, you are not allowed to drive under my driving license
7-7-2010
32
SummarySummary• Practice and Law are not aligned• A workaround is available
++++ / ----++++ /
• The workaround is voluntary– Cooperation not guaranteed– Acceptance not guaranteed
• The workaround is not perfectp
7-7-2010
33