ASTM D2911-1994(2005) Standard Specification for Dimensions and Tolerances for Plastic Bottles《塑料瓶的尺寸和公差标准规范》.pdf
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1、Designation: D 2911 94 (Reapproved 2005)Standard Specification forDimensions and Tolerances for Plastic Bottles1This standard is issued under the fixed designation D 2911; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of
2、 last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the thread configuration anddimensions for finishes for plastic bottles with screw-typeclo
3、sures, having a maximum capacity of 18.9 L (5 gal) and amaximum bottle dimension of 305 mm (12 in.). Included aretolerances for bottle capacity and body dimensions.1.2 The values stated in SI units are to be regarded as thestandard.1.3 The following precautionary caveat pertains only to thetest meth
4、ods portion, Section 8 of this specification. Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory li
5、mita-tions prior to use.NOTE 1There is no similar or equivalent ISO standard.2. Referenced Documents2.1 ASTM Standards:2D 618 Practice for Conditioning Plastics for TestingD 1898 Practice for Sampling of Plastics33. Terminology3.1 Definitions:3.1.1 bottle finishthe configuration of the neck or openi
6、ngof the bottle which serves to engage specific parts of theclosure in order to securely attach it to the bottle.3.1.2 bottle heightthe maximum dimension of a bottle ina plane perpendicular to the bottle base when the bottle issetting in its normal upright position.3.1.3 bottle thicknessthe smaller
7、dimension in a planeparallel to the bottle base.3.1.4 bottle widththe larger dimension in a plane parallelto the bottle base.4. Dimensions and Recommended Variations4.1 Recommended Variations in Overflow CapacityInoverflow capacity recommended variations of plastic bottles upto 18.9 L (5 gal) in siz
8、e shall be in accordance with Table 1.4.2 Recommended Variations in Body DimensionsTherecommended variations in the body dimensions of plasticbottles covered by this specification shall be in accordance withTable 2.4.3 Finish Dimensions and DesignThe bottle finish di-mensions and design for the nine
9、 finishes covered by thisspecification shall be in accordance with Figs. 1-8 and Tables3-10.5. Sampling5.1 A batch or lot shall be considered as a unit of manufac-ture.5.2 Unless otherwise agreed upon between manufacturerand purchaser, the material shall be sampled in accordancewith the procedure de
10、scribed in Section 9 of Practice D 1898.Adequate statistical sampling prior to packaging shall beconsidered an acceptable alternative.6. Conditioning6.1 ConditioningCondition the test specimens at 23 62C (73.4 6 3.6F) and 50 6 5% relative humidity for not lessthan 40 h prior to test in accordance wi
11、th Procedure A ofPractice D 618 for those tests where conditioning is required.In cases of disagreement, the tolerances shall be 6 1C(61.8F) and 62 % relative humidity.6.2 Test ConditionsConduct tests in the standard labora-tory atmosphere of 23 6 2C (73.4 6 3.6F) and 50 6 5%relative humidity, unles
12、s otherwise specified in the test meth-ods or in this specification. In cases of disagreement, thetolerances shall be 61C (61.8F) and 62 % relative humid-ity.1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.20 on Plas
13、tic Products.Current edition approved July 1, 2005. Published August 2005. Originallyapproved in 1970. Last previous edition approved in 2001 as D 2911 - 94 (2001).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Boo
14、k of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.7. Apparatus7.1 For Determining Bottle Capacity:7.1.1 Balance, having a
15、n accuracy of 60.1 % or better atrated capacity (full scale).7.1.2 Pipet, Graduated Cylinder, and Beaker, as required.7.1.3 Conditioned water at 23 6 2.0C (73.46 3.6F)containing a wetting agent sufficient to flatten the meniscus andeliminate air bubbles.NOTE 2Any liquid detergent may be used as the
16、wetting agent.7.1.4 Stop Watch.7.2 For Determining Finish and Body Dimensions:7.2.1 Micrometers, Vernier Height Gages, or Vernier Cali-pers with an accuracy of 60.025 mm (60.001 in.).7.2.2 Internal Micrometers or Telescoping Gages with anaccuracy of 60.025 mm (60.001 in.).7.2.3 Commercial Scale, goo
17、d quality calibrated in 1-mm or132-in. increments.8. Test Methods8.1 Bottle Capacity:8.1.1 Weigh the empty bottle and record the weight ingrams.8.1.2 Fill the bottle to overflow capacity with conditionedwater containing the wetting agent, adjusting the meniscus byuse of a pipet, if necessary, until
18、the meniscus is tangent to thetop of the finish surface. No more than 2 min shall be allowedfor filling the bottle and no additional water shall be added afterthe bottle is filled to overflow and free of air bubbles.8.1.3 If the time exceeds 2 min, discard the sample and startover.NOTE 3The capacity
19、 of the container is somewhat time-dependent inthat the force of the water in the container will cause the container sidesto bulge with time and additional water will be needed to adjust tooverflow capacity.8.1.4 Weigh the filled bottle and record the weight in grams.8.1.5 Calculate the bottle volum
20、e as follows:TABLE 1 Bottle Overflow Capacity Tolerances for Plastic BottlesFluid Ounces MillilitresBottle Overflow Capacity Tolerance (6) Bottle Overflow Capacity Tolerance (6)less than 0.75 0.05 less than 22 1.50.75 and less than 1.2 0.07 22 and less than 35 2.01.2 and less than 1.6 0.08 35 and le
21、ss than 47 2.51.6 and less than 2.1 0.10 47 and less than 62 3.02.1 and less than 2.8 0.12 62 and less than 83 3.52.8 and less than 3.9 0.14 83 and less than 115 43.9 and less than 5.4 0.17 115 and less than 159 55.4 and less than 7.4 0.20 159 and less than 218 67.4 and less than 9.8 0.24 218 and le
22、ss than 289 79.8 and less than 13 0.30 289 and less than 384 913 and less than 18 0.37 384 and less than 531 1118 and less than 26 0.44 531 and less than 767 1326 and less than 37 0.51 767 and less than 1092 1537 and less than 51 0.68 1092 and less than 1505 2051 and less than 72 0.81 1505 and less
23、than 2125 2472 and less than 98 1.01 2125 and less than 2892 3098 and less than 119 1.30 2892 and less than 3512 38119 and less than 139 1.50 3512 and less than 4103 44139 and less than 160 1.80 4103 and less than 4723 53160 and less than 180 2.00 4723 and less than 5313 59180 and less than 210 2.20
24、 5313 and less than 6199 65210 to 5 gallons 1 % of capacity 6199 to 18.89 litres 1 % of capacityTABLE 2 Body Dimensional ToleranceRange of Specific Dimensions Height Dimensions Width and Depth Dimensionsin. mm in. mm in. mm0 up to but not including 1 0 to 25.40 0.030 0.76 0.030 0.761 up to but not i
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