1、BRITISH STANDARD BS EN 12697-38:2004 Bituminous mixtures Test methods for hot mix asphalt Part 38: Common equipment and calibration The European Standard EN 12697-38:2004 has the status of a British Standard ICS 93.080.20 BS EN 12697-38:2004 This British Standard was published under the authority of
2、 the Standards Policy and Strategy Committee on 6 August 2004 BSI 6 August 2004 ISBN 0 580 44204 7 National foreword This British Standard is the official English language version of EN 12697-38:2004. The UK participation in its preparation was entrusted by Technical Committee B/510, Road materials,
3、 to Subcommittee B/510/1, Coated macadam and hot asphalt, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to i
4、n this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of
5、a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for chang
6、e, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 18, an inside back cover and a back cover. The BSI copyright noti
7、ce displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN1269738 July2004 ICS93.080.20 Englishversion BituminousmixturesTestmethodsforhotmixasphaltPart 38:Commonequipmentandca
8、libration MlangebitumineuxMthodesdessaipourmlange hydrocarbonchaudPartie38:Appareillagecommun, calibrageettalonnage AsphaltPrfverfahrenfrHeiasphaltTeil38: PrfeinrichtungundKalibrierung ThisEuropeanStandardwasapprovedbyCENon1April2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswh
9、ichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(Engl
10、ish,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,
11、 Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,
12、36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN1269738:2004:EEN 12697-38:2004 (E) 2 Contents page 1 Scope 6 2 Normative references 6 3 Terms and definitions .6 4 General10 5 Test equipment 10 6 Calibration 11 Annex A (informativ
13、e) Recommendations for Laboratory Management.13 Annex B (informative) Accuracy of measurement .14 Annex C (informative) Rounding of values for reported results 17 Bibliography18 EN 12697-38:2004 (E) 3 Foreword This document (EN 12697-38:2004) has been prepared by Technical Committee CEN/TC 227 “Road
14、 materials”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2005, and conflicting national standards shall be withdrawn at the latest by January 2
15、005. This document is one of a series of standards as listed below: EN 12697-1, Bituminous mixtures Test methods for hot mix asphalt Part 1: Soluble binder content EN 12697-2, Bituminous mixtures Test method for hot mix asphalt Part 2: Determination of particle size distribution EN 12697-3, Bitumino
16、us mixtures - Test methods for hot mix asphalt - Part 3: Bitumen recovery: Rotary evaporator EN 12697-4, Bituminous mixtures - Test methods for hot mix asphalt - Part 4: Bitumen recovery: Fractionating column EN 12697-5, Bituminous mixtures Test methods for hot mix asphalt Part 5: Determination of t
17、he maximum density EN 12697-6, Bituminous mixtures - Test methods for hot mix asphalt - Part 6: Determination of bulk density of bituminous specimens EN 12697-7, Bituminous mixtures Test methods for hot mix asphalt Part 7: Determination of bulk density of bituminous specimens by gamma rays EN 12697-
18、8, Bituminous mixtures - Test methods for hot mix asphalt - Part 8: Determination of void characteristics of bituminous specimens EN 12697-9, Bituminous mixtures - Test methods for hot mix asphalt - Part 9: Determination of the reference density EN 12697-10, Bituminous mixtures Test methods for hot
19、mix asphalt Part 10: Compactability EN 12697-11, Bituminous mixtures - Test methods for hot mix asphalt - Part 11: Determination of the affinity between aggregate and bitumen EN 12697-12, Bituminous mixtures - Test methods for hot mix asphalt - Part 12: Determination of the water sensitivity of bitu
20、minous specimens EN 12697-13, Bituminous mixtures Test methods for hot mix asphalt Part 13: Temperature measurement EN 12697-14, Bituminous mixtures Test methods for hot mix asphalt Part 14: Water content EN 12697-15, Bituminous mixtures Test methods for hot mix asphalt Part 15: Determination of the
21、 segregation sensitivity EN 12697-16, Bituminous mixtures Test methods for hot mix asphalt Part 16: Abrasion by studded tyres EN 12697-38:2004 (E) 4 EN 12697-17, Bituminous mixtures Test methods for hot mix asphalt Part 17: Particle loss of porous asphalt specimen EN 12697-18, Bituminous mixtures Te
22、st methods for hot mix asphalt Part 18: Binder drainage EN 12697-19, Bituminous mixtures Test methods for hot mix asphalt Part 19: Permeability of specimen EN 12697-20, Bituminous mixtures - Test methods for hot mix asphalt - Part 20: Indentation using cube or Marshall specimens EN 12697-21, Bitumin
23、ous mixtures - Test methods for hot mix asphalt - Part 21: Indentation using plate specimens EN 12697-22, Bituminous mixtures Test methods for hot mix asphalt Part 22: Wheel tracking EN 12697-23, Bituminous mixtures - Test methods for hot mix asphalt - Part 23: Determination of the indirect tensile
24、strength of bituminous specimens EN 12697-24, Bituminous mixtures Test methods for hot mix asphalt Part 24: Resistance to fatigue prEN 12697-25, Bituminous mixtures - Test methods for hot mix asphalt - Part 25: Cyclic compression test EN 12697-26, Bituminous mixtures Test methods for hot mix asphalt
25、 Part 26: Stiffness EN 12697-27, Bituminous mixtures Test methods for hot mix asphalt Part 27: Sampling EN 12697-28, Bituminous mixtures Test methods for hot mix asphalt Part 28: Preparation of samples for determining binder content, water content and grading EN 12697-29, Bituminous mixtures - Test
26、method for hot mix asphalt - Part 29: Determination of the dimensions of a bituminous specimen EN 12697-30, Bituminous mixtures Test methods for hot mix asphalt Part 30: Specimen preparation by impact compactor EN 12697-31, Bituminous mixtures Test methods for hot mix asphalt Part 31: Specimen prepa
27、ration by gyratory compactor EN 12697-32, Bituminous mixtures Test methods for hot mix asphalt Part 32: Laboratory compaction of bituminous mixtures by a vibratory compactor EN 12697-33, Bituminous mixtures Test methods for hot mix asphalt Part 33: Specimen preparationby roller compactor EN 12697-34
28、, Bituminous mixtures Test methods for hot mix asphalt Part 34: Marshall test prEN 12697-35, Bituminous mixtures Test methods for hot mix asphalt Part 35: Laboratory mixing EN 12697-36, Bituminous mixtures Test methods for hot mix asphalt Part 36: Determination of the thickness of a bituminous pavem
29、ent EN 12697-37, Bituminous mixtures Test methods for hot mix asphalt Part 37: Hot sand test for the adhesivity of binder on precoated chippings for HRA EN 12697-38, Bituminous mixtures Test methods for hot mix asphalt Part 38: Common equipment and calibration EN 12697-38:2004 (E) 5 prEN 12697-39, B
30、ituminous mixtures Test methods for hot mix asphalt Part 39: Binder content by ignition. prEN 12697-40, Bituminous mixtures Test methods for hot mix asphalt Part 40: In-situ drainability prEN 12697-41, Bituminous mixtures Test methods for hot mix asphalt Part 41: Resistance to de-icing fluids prEN 1
31、2697-42, Bituminous mixtures Test methods for hot mix asphalt Part 42: Amount of foreign matters in reclaimed asphalt prEN 12697-43, Bituminous mixtures Test methods for hot mix asphalt Part 43: Resistance to fuel According to the CEN/CENELEC Internal Regulations, the national standards organization
32、s of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia,
33、 Spain, Sweden, Switzerland and United Kingdom. EN 12697-38:2004 (E) 6 1 Scope This document specifies general requirements for common test equipment, calibration procedures and reagents for the testing of bituminous materials in the EN 12697 series of standards. NOTE 1 This document makes use by re
34、ference of the requirements for common equipment and calibration prepared for aggregates. NOTE 2 Bodies providing accreditation of test equipment may need to consider alternative requirements and/or calibration frequencies in order to cover the possibilities of National Health or that a property (su
35、ch as hardness) of an item, or a set of items, of equipment complies with the relevant requirements for that equipment 3.3 reference instrument item of equipment that is used to calibrate other items of equipment that are to be used to perform tests NOTE A reference instrument should not be used to
36、perform a test. 3.4 reference document item with a property (such as mass or length) whose known value is traceable to national standards and is used in the calibration of items of equipment that is to be used to perform tests NOTE A reference document should not be used to perform a test. 3.5 accur
37、acy (of a measurement) (see Figure 1) difference between the measurement and the real or target value. Normally, the accuracy consists of two items: accuracy = random error or precision + systematic error or bias (trueness) NOTE 1 The accuracy of measurement is important because there is uncertainty
38、 in any measurement of physical properties. This uncertainty results from variations between two measurements of nominally identical samples and can result from various reasons including: differences in the composition of the samples tested; differences in the dimensions and shape of the samples tes
39、ted; differences in equipment (dimensions, stiffness of moving parts, etc) used to carry out the tests; the precise procedure that the test is carried out (often due to different layout of equipment within different laboratories); the physical strength (in terms of the time to press buttons or speed
40、 in lifting items), speed of reactions and predilections of the operatives; and the precise environmental conditions prevalent during the test. These differences can be so minor that it is impractical to specify them within a test procedure, but they still combine to produce noticeable differences.
41、NOTE 2 There is a distinction between “readability” and “accuracy”. If equipment can be accurately read to 1 unit, then the random error in the value of the reading cannot be less than 0,5 units, that is 1 unit. There can also be random errors in the measurement method. Therefore, the accuracy of eq
42、uipment, that is the total random error plus any bias, can never be closer than its readability and will usually be in excess of that. However, equipment cannot be calibrated to better than the readability, so that the accuracy is generally an order of magnitude greater than the readability and shou
43、ld always be at least twice the readability. 3.6 standard deviation (of a measurement) (see Figure 1) quantitative statistical expression of the precision of a measurement NOTE 1 There does not have to be a relation between precision and accuracy. A measurement can be precise and not accurate (in which case the bias is large).
