1、BRITISH STANDARD BS 1918-1: 1978 Incorporating Amendment No. 1 and 2 Glass container finishes Part 1: Specification for continuous thread finish UDC 621.798.147:666.171:683.533.8BS 1918-1:1978 This British Standard, having been prepared under the direction of the Packaging and Freight Containers Sta
2、ndards Committee, was published under the authority of the Executive Board on 31 March 1978 BSI 07-1999 First published January 1953 First revision March 1978 The following BSI references relate to the work on this standard: Committee reference PKM/563 Draft for comment 74/62682 DC ISBN 0 580 10110
3、X Cooperating organizations The Packaging and Freight Containers Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following Government departments and scientific and industrial organizations. The organizations marked with an asterisk
4、 in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this British Standard: Association of Drum Manufacturers Food Manufacturers Federation Incorporated* British Paper and Board Industry Glass Manufacturers Federation* Federati
5、on (PIF) Institute of Packaging British Paper Bag Federation Institute of Trading Standards British Tin Box Manufacturers Federation Administration* Chemical Industries Association* Ministry of Defence* Collapsible Tube Manufacturers Association Oil Companies Materials Association Confederation of B
6、ritish Industry Paintmakers Association of Great Britain Ltd. Crown Agents for Oversea Governments and Pira (The Research Association for the Paper Administrations and Board, Printing and Packaging Department of Trade Paper, Printing, Industries)* Publishing, Services the width of each of these surf
7、aces shall be one-tenth of the circumference of the minimum T dimension. Figure 5 shows details of this gauge which, for convenience, should be manufactured combined with a ring gauge made to the maximum T dimension for use in gauging the maximum diameter. 3.3 Sealing surface. The sealing surface ma
8、y be flat or radial and shall conform to the dimensions shown in Figure 1 to Figure 4. It shall be as regular and smooth as possible. 3.4 Finish with depressed thread. If a depressed thread is used it shall comply with Figure 6. a) Shallow continuous thread finishes R3 b) Tall continuous thread fini
9、shes R4 c) Medium/shallow continuous thread finishes R5 d) Medium continuous thread finishes R6BS 1918-1:1978 2 BSI 07-1999 Figure 1 Shallow continuous thread finishes (R3)BS 1918-1:1978 BSI 07-1999 3 Table 1 Shallow continuous thread finishes (R3) No. or size T E H I R S P r Cutter dia. Pitch Max.
10、Min. Max. Min. Max. Min. Min. Max. Max. Min. Min. Max. Angle 18 17.90 17.40 15.75 15.25 9.3 8.8 8.3 1.1 1.6 0.8 1.50 0.6 3 30 9.5 3.20 20 19.90 19.40 17.75 17.25 9.3 8.8 10.3 1.1 1.6 0.8 1.50 0.6 3 7 9.5 3.20 22 21.90 21.40 19.75 19.25 9.3 8.8 12.3 1.1 1.6 0.8 1.60 0.7 2 49 9.5 3.20 24 23.90 23.40 2
11、1.75 21.25 10.1 9.6 13.1 1.1 1.6 0.8 1.60 0.7 2 34 9.5 3.20 28 27.65 27.00 25.25 24.60 10.1 9.6 15.6 1.2 1.6 0.8 1.60 0.7 2 57 12.7 4.25 30 28.65 28.00 26.25 25.60 10.1 9.6 16.6 1.2 1.6 0.8 1.70 0.8 2 51 12.7 4.25 33 32.15 31.50 29.75 29.10 10.1 9.6 20.0 1.2 1.6 0.8 1.70 0.8 2 31 12.7 4.25 38 37.45
12、36.55 35.05 34.15 10.1 9.6 25.0 1.2 1.6 0.8 1.70 0.8 2 9 12.7 4.25 40 40.10 39.20 37.70 36.80 10.1 9.6 NOT APPLICABLE 1.2 1.6 0.8 1.70 0.8 21 12.7 4.25 43 41.95 41.05 39.55 38.65 10.1 9.6 1.2 1.6 0.8 1.70 0.8 1 55 12.7 4.25 48 47.45 46.55 45.05 44.15 10.1 9.6 1.2 1.6 0.8 1.70 0.8 1 41 12.7 4.25 51 4
13、9.95 49.05 47.55 46.65 10.4 9.6 1.2 1.6 0.8 1.70 0.8 1 36 12.7 4.25 53 52.45 51.55 50.05 49.15 10.4 9.6 1.2 1.6 0.8 1.70 0.8 1 31 12.7 4.25 58 56.45 55.55 54.05 53.15 10.4 9.6 1.2 1.6 0.8 2.00 0.9 1 25 12.7 4.25 60 59.45 58.55 57.05 56.15 10.4 9.6 1.2 1.6 0.8 2.00 0.9 1 20 12.7 4.25 63 62.45 61.55 6
14、0.05 59.15 10.4 9.6 1.2 1.6 0.8 2.00 0.9 1 16 12.7 4.25 66 65.45 64.55 63.05 62.15 10.4 9.6 1.2 1.6 0.8 2.00 0.9 1 14 12.7 4.25 70 69.45 68.55 67.05 66.15 10.4 9.6 1.2 1.6 0.8 2.00 0.9 1 8 12.7 4.25 77 77.10 76.05 74.05 73.00 12.4 11.6 1.6 2.0 1.2 2.00 0.9 1 14 12.7 5.10 83 83.00 82.00 79.95 78.95 1
15、2.4 11.6 1.6 2.0 1.2 2.00 0.9 1 9 12.7 5.10 89 89.20 88.20 86.15 85.15 13.6 12.8 1.6 2.0 1.2 2.20 0.9 1 4 12.7 5.10 100 100.00 99.00 96.95 95.95 15.2 14.4 1.6 2.0 1.2 2.20 0.9 0 56 12.7 5.10 120 120.00 119.00 116.95 115.95 17.4 16.6 1.6 2.0 1.2 2.20 0.9 0 47 12.7 5.10BS 1918-1:1978 4 BSI 07-1999 Tab
16、le 2 Tall continuous thread finishes (R4) Figure 2 Tall continuous thread finishes (R4) No. or size T E H I R S L W P r Cutter dia. Pitch Max. Min. Max. Min. Max. Min. Min. Max. Max. Min. Min. Approx. Min. Max. Angle 13 13.05 12.65 11.55 11.15 11.6 11.0 5.5 0.8 1.6 0.8 7.4 1.6 1.40 0.6 3 11 9.5 2.10
17、 14 13.80 13.40 12.30 11.90 13.0 12.4 6.0 0.8 1.6 0.8 8.4 1.6 1.40 0.6 3 0 9.5 2.10 15 14.75 14.35 13.25 12.85 14.2 13.6 6.5 0.8 1.6 0.8 8.5 2.0 1.40 0.6 2 48 9.5 2.10 18 17.90 17.40 15.75 15.25 15.9 15.2 8.3 1.1 1.6 0.8 10.5 2.0 1.50 0.6 3 30 9.5 3.20 20 19.90 19.40 17.75 17.25 19.0 18.3 10.3 1.1 1
18、.6 0.8 11.2 2.0 1.50 0.6 3 7 9.5 3.20 22 21.90 21.40 19.75 19.25 21.4 20.7 12.3 1.1 1.6 0.8 13.5 2.0 1.60 0.7 2 49 9.5 3.20 24 23.90 23.40 21.75 21.25 24.6 23.8 13.1 1.1 1.6 0.8 13.9 2.0 1.60 0.7 2 34 9.5 3.20 28 27.65 27.00 25.25 24.60 27.8 27.0 15.6 1.2 1.6 0.8 16.3 2.4 1.60 0.7 2 57 12.7 4.25 31
19、30.65 30.00 28.25 27.60 29.4 28.6 17.7 1.2 2.4 1.6 17.9 2.4 1.70 0.8 2 39 12.7 4.25BS 1918-1:1978 BSI 07-1999 5 Table 3 Medium/shallow continuous thread finishes (R5) Figure 3 Medium/shallow continuous thread finishes (R5) No. or size T E H I R L W P r Cutter dia. Pitch No. of turns Max. Min. Max. M
20、in. Max. Min. Min. Max. Min. Approx. Min. Max. Angle 18 17.90 17.40 15.75 15.25 13.1 12.7 8.3 1.1 8.8 2.0 1.50 0.6 3 30 9.5 3.20 1 20 19.90 19.40 17.75 17.25 13.9 13.5 10.3 1.1 8.8 2.0 1.50 0.6 3 7 9.5 3.20 1 22 21.90 21.40 19.75 19.25 14.7 14.3 12.3 1.1 9.2 2.0 1.60 0.7 2 49 9.5 3.20 1 24 23.90 23.
21、40 21.75 21.25 16.3 15.8 13.1 1.1 10.7 2.0 1.60 0.7 2 34 9.5 3.20 2 28 27.65 27.00 25.25 24.60 17.9 17.4 15.6 1.2 10.3 2.4 1.60 0.7 2 57 12.7 4.25 1BS 1918-1:1978 6 BSI 07-1999 Table 4 Medium continuous thread finishes (R6) Figure 4 Medium continuous thread finishes (R6) No. or size T E H I R S P r
22、Cutter dia. Pitch Max. Min. Max. Min. Max. Min. Min. Max. Max. Min. Min. Max. Angle 15 14.75 14.35 13.25 12.85 9.0 8.5 6.5 0.8 1.6 0.8 1.40 0.6 2 48 9.5 2.10 18 17.90 17.40 15.75 15.25 11.0 10.5 8.3 1.1 1.6 0.8 1.50 0.6 3 30 9.5 3.20 20 19.90 19.40 17.75 17.25 11.7 11.2 10.3 1.1 1.6 0.8 1.50 0.6 3 7
23、 9.5 3.20 22 21.90 21.40 19.75 19.25 14.0 13.5 12.3 1.1 1.6 0.8 1.60 0.7 2 49 9.5 3.20 24 23.90 23.40 21.75 21.25 14.4 13.9 13.1 1.1 1.6 0.8 1.60 0.7 2 34 9.5 3.20 28 27.65 27.00 25.25 24.60 16.8 16.3 15.6 1.2 1.6 0.8 1.60 0.7 2 57 12.7 4.25 31 30.65 30.00 28.25 27.60 18.4 17.9 17.7 1.2 2.4 1.6 1.70
24、 0.8 2 39 12.7 4.25BS 1918-1:1978 BSI 07-1999 7 NOTE 1The GO side of this gauge should pass over the whole depth of thread. NOTE 2The NO GO side of this gauge should not pass on to any thread at any position around the whole circumference. NOTE 3This gauge will permit undersize to a width not exceed
25、ing one-tenth part of the circumference of the thread. Figure 5 Parnaby gauge for continuous thread glass finishesBS 1918-1:1978 8 BSI 07-1999 Figure 6 Finish with depressed threadBS 1918-1:1978 BSI 07-1999 Publication referred to BS 4602, The use of metric units in specifications for glass containe
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