(a) The films listed in paragraph (c) of this section are available on loan from the National Bureau of Standards free of charge. The borrower, however, is required to pay return parcel post and insurance charges. Requests for the films should be directed to the Office of Technical Information and Publications, National Bureau of Standards, Washington, D.C. 20234.

(b) Prints may be purchased by writing to the above address for "authorization to purchase" forms and instructions. Completed forms, upon approval by the National Bureau of Standards, authorize duplication of the film by a commercial firm who will ship the film and bill the purchaser direct.

(c) All films are 16mm sound and color.

ITEM AND DESCRIPTION

141-1.1 "Preparation of White Cast-Iron Standards," 1965; 550 feet; running time 151⁄2 minutes.

141-1.2 "Calibration of the Platinum Resistance Thermometer," 1964; 575 feet; running time 16 minutes.

141-1.3 Mixing Nonhomogeneous Air Streams," 1964; 225 feet; running time 6 minutes.

141-1.4 "Scatter Radar: Space Research from the Ground," 1963; 864 feet; running time 23 minutes.

141-1.5 "Ultrasonic Thermometer," 1962; 145 feet; running time 4 minutes. 141-1.6 "Trapping of Free Radicals at Low Temperatures," 1960; 510 feet; running time 131⁄2 minutes. 141-1.7 "Understanding the Physical World Through Measurement," 1957; 1,120 feet; running time 33 minutes.

141-1.8 "Assignment-Weights and Measures," 1957; 674 feet; running time 18 minutes.

141-1.9 "Testing Mass Standards by Substitution," 1956; 809 feet; running time 22 minutes.

141-1.10 "A True Standard," 1954; 438 feet; running time 12 minutes.

141-1.11 "Four Experiments in Hydraulics," 1953; 607 feet; running time 161⁄2 minutes. 141-1.12 "Silicate Cement," 1947; 657 feet; running time 18 minutes.

141-1.13 "Dental X-Ray Equipment: Alteration for Modern Radiation Hygiene," 1959; 629 feet; running time 18 minutes. 141-1.14 "Dental Materials:

Specification

and Certification," 1955; 766 feet; running time 21 minutes.

141-1.15 "A Porcelain Jacket Crown Technique," 1955; 856 feet; running time 23 minutes.

141-1.16 "Dental Burs in Action," 1955; 365 feet; running time 10 minutes. 141-1.17 "Hazards of Dental Radiography,"

1954; 505 feet; running time 13 minutes. 141-1.18 "A Method of Mixing Silicate Cement," 1953; 329 feet; running time 81⁄2 minutes.

141-1.19 "The Casting of Dental Gold Alloys: Thermal Expansion Technique," 1951; 632 feet; running time 161⁄2 minutes. 141-1.20 "Denture Resin," 1949; 657 feet; running time 18 minutes. 141-1.21 "Dental Amalgam: Failure Caused by Moisture Contamination," 1948; 502 feet; running time 15 minutes. 141-1.22 "Dental

Roentgenographic Film Characteristics and Use in Radiation Hygiene," 1962; 754 feet; running time 20 minutes.

[32 F.R. 10198, July 11, 1967]

§ 235.2 Charges for certifications.

(a) The charge for each certification as to the official nature of copies of correspondence and records from the files, publications and other documents of the National Bureau of Standards, including the affixing of the Department of Commerce seal, is 50 cents.

(b) For information concerning titles and prices of Bureau publications, address inquiries to the Office of Technical Information, National Bureau of Standards, Washington, D.C. 20234.

§ 235.3 Charges for searching records and for copying records and docu

ments.

The charge for photocopies of records and documents is 25 cents a copy. This charge does not apply to copies of data and reports or certificates relating to tests performed by the National Bureau of Standards. Charges for documents relating to tests are published in Part 200 of this chapter.

Required marking. 240.6 Tolerances.

AUTHORITY: The provisions of this Part 240 issued under sec. 4, 39 Stat. 531; 15 U.S.C. 240, unless otherwise noted.

SOURCE: The provisions of this Part 240 appear at 13 F.R. 8372, Dec. 28, 1948, unless otherwise noted.

The rules and regulations in this part are to be understood and construed to apply to lime in barrels, or other containers packed, sold, or offered for sale for shipment from any State or Territory or the District of Columbia to any other State or Territory or the District of Columbia; and to lime in containers of less capacity than the standard small barrel sold in interstate or foreign commerce; and to lime imported in barrels from a foreign country and sold or offered for sale; also to lime not in barrels or containers of less capacity than the standard small barrel, sold, charged for, or purported to be delivered as a large or small barrel or a fractional part of said small barrel of lime, from any State or Territory or the District of Columbia to any other State or Territory or the District of Columbia.

this part, is defined as any container not in barrel form containing therein a net weight of lime of less than 180 pounds.

(b) The term "label" as used in the rules and regulations in this part is defined as any printed, pictorial, or other matter upon the surface of a barrel or other container of lime subject to the provisions of this act, or upon cloth or paper or the like which is permanently affixed to it by pasting or in a similar

manner.

(c) The term "tag" is defined as a tough and strong strip of cloth or paper or the like, bearing any printed, pictorial, or other matter, which is loose at one end and which is secured to a container of lime subject to the provisions of the act. (Sec. 3, 39 Stat. 530; 15 U. S. C. 239) § 240.5 Required marking.

(a) The lettering required upon barrels of lime by section 2 of the law shall be as follows: The statement of net weight shall be in bold-face capital letters and figures at least 1 inch in height and not expanded or condensed; it shall be clear, legible, and permanent, and so placed with reference to the other lettering that it is conspicuous. The name of the manufacturer of the lime and where manufactured, and, if imported, the name of the country from which it is imported, shall be in boldface letters at least one-half inch in height and not expanded or condensed, and shall be clear, legible, conspicuous, and permanent. None of these letters and figures shall be superimposed upon each other, nor shall any other characters be superimposed upon the required lettering or otherwise obscure it. All the above statements shall form parts of the principal label.

(b) The information required upon containers of lime of less capacity than the standard small barrel by section 3 of the law shall be included in a label: Provided, however, That in order to allow the utilization of second-hand or returnable bags made of cloth, burlap, or the like, such information may be upon a tag firmly attached to the container in a prominent and conspicuous position. In case a tag is used to give the required information there must not be any label or another tag upon the container which bears any statement having reference to lime, or any statement of weight whatever, which is not identical with the in

formation upon the tag mentioned above; if a container is to be utilized which bears any such inaccurate information upon a label, such container shall be turned inside out or such information shall be obliterated in so far as it is inaccurate by blotting out the letters or figures; or if such inaccurate information is upon a tag, by removing such tag.

(c) If the required lettering is upon a label, the statement of net weight shall be in bold-face capital letters and figures at least three-fourths inch in height and not expanded or condensed; it shall be clear, legible, and permanent, and so placed with reference to the other lettering that it is conspicuous. The word "net" shall form part of the statement of weight. The name of the manufacturer of the lime and the name of the brand, if any, under which it is sold, and, if imported, the name of the country from which it is imported, shall be in bold-face letters at least one-half inch in height and not expanded or condensed, and shall be clear, legible, conspicuous, and permanent. None of these letters and figures shall be superimposed upon each other, nor shall any other characters be superimposed upon the required lettering or otherwise obscure it. All the above statements shall form parts of the principal label.

(d) If the required lettering is upon a tag, the statement of net weight shall be in bold-face capital letters and figures not less than one-half the height of the largest letters or figures used upon such tag: Provided, however, That in every case they shall be not less than oneeighth inch in height (12-point capitals), and not expanded or condensed. The word "net" shall form part of the statement of weight. The statement shall be clear, legible, and permanent, and so placed with reference to the other lettering that it is conspicuous. The name of the manufacturer of the lime, and the name of the brand, if any, under which it sold, and, if imported, the name of the country from which it is imported, shall be in bold-face letters and figures not less than one-eighth inch in height (12-point capitals), and not expanded or condensed, and shall be clear, legible, conspicuous, and permanent. None of these letters and figures shall be superimposed upon each other nor shall any other characters be superimposed upon the required lettering or otherwise obscure it. All the above statements shall

(giving the name and address of the packer). This statement shall be in letters not smaller than is specified for the general statement required in the case of barrels and containers of less capacity than the standard small barrel, respectively (see paragraphs (a) and (b) of this section); it shall not be obscured and shall form part of the principal label or be upon the same side of the tag as in those cases provided.

(f) In the case of all lime sold in barrels, the actual place of manufacture of the lime shall be stated on the barrel. In general, this will be the name of the post office nearest or most accessible to the plant. However, when the actual place of manufacture of the lime and the offices of the company are separated but are within the boundaries of the same county of a State, or when, though not within the boundaries of the same county they are so close together that the post-office address of the offices represents substantially and to all intents and purposes the actual place of manufacture of the lime, then the postoffice address of the offices of the company will be sufficient: Provided, however, That the address given shall always correctly show the State in which the lime is actually manufactured.

(g) More than one place of manufacture of a manufacturer shall not be shown on the same barrel unless the one at which the particular lime in question is manufactured is pointed out.

(h) If the location of the home offices is stated and this is not the place of manufacture within the meaning of the above definition, an additional statement must be included to this effect: "Manufactured at (giving the location of the plant). (Secs. 2, 3, 39 Stat. 530; 15 U.S.C. 238, 239) § 240.6 Tolerances.

(a) When lime is packed in barrels the tolerance to be allowed on the large barrel or the small barrel of lime shall be 5 pounds in excess or in deficiency on any individual barrel: Provided, how

ever, That the average error on 10 barrels of the same nominal weight and packed by the same manufacturer shall in no case be greater than 2 pounds in excess or in deficiency. In case all the barrels available are not weighed, those which are weighed shall be selected at random.

(b) When lime is packed in containers of less capacity than the standard small barrel, the tolerance to be allowed in excess or in deficiency on individual containers of various weights, shall be the values given in the column headed "Tolerance on individual package," of the following table: Provided, however, That the average error on 10 containers of the same nominal weight and packed by the same manufacturer shall in no case be greater than the values given in the column headed "Tolerance on average weight," of the following table. In case all the containers available are not weighed, those which are weighed shall be selected at random.

AUTHORITY: The provisions of this Part 241 issued under sec. 3, 38 Stat. 1187; 15 U.S.C 236, unless otherwise noted.

SOURCE: The provisions of this Part 241 appear at 13 F.R. 8373, Dec. 28, 1948, unless otherwise noted.

NOTE: The rules and regulations in this part refer entirely to individual barrels, and no separate tolerance has been placed on the average content of a number of barrels taken at random from a shipment. It is not believed that barrels can be so made as to take advantage of the tolerances, and, of course, no attempt should be made to do this. It is, therefore, expected that as many barrels will be above as below the standard capacity. Capacities.

§ 241.1

Barrel. 4 barrel. 1⁄2 barrel. barrel.

ual

average

weigh

package

Pounds

Pounds

1 Struck measure.

(b) The capacities of the standard cranberry barrel and its subdivisions are as follows:

(c) When lime in bulk is sold, charged for, or purported to be delivered as a deflnite number of large or small barrels, the tolerance to be allowed in excess or in deficiency on such amounts of lime shall be 15 pounds per 1,800 pounds (10 small barrels), or 25 pounds per 2,800 pounds (10 large barrels).

1 Struck measure.

(Sec. 1, 38 Stat. 1186; 15 U. S. C. 234) § 241.2 Legal standard barrels.

(a) Any barrel having the dimensions specified for a standard barrel for fruits, vegetables, and other dry commodities, other than cranberries, in section 1 of the standard-barrel law, or any barrel or a subdivision thereof having the contents specified in section 1 of the standardbarrel law and in § 241.1 (a) regardless of its form or dimensions, is a legal standard barrel for fruits, vegetables, or other dry commodities other than cranberries, or a legal subdivision thereof. No other barrel or subdivision in barrel form is a legal container for fruits, vegetables, or other dry commodities other than cranberries.

(b) Any barrel having the dimensions specified for a standard barrel for cranberries in section 1 of the standard-barrel law, or any subdivision thereof having the contents specified in § 241.1 (b), regardless of its form or dimensions, is a legal standard barrel for cranberries or a legal subdivision thereof. No other barrel or subdivision in barrel form is a legal container for cranberries. (Sec. 1, 38 Stat. 1186; 15 U. S. C. 234)

§ 241.3 Application of tolerance for "distance between heads."

The tolerance established in this part for the dimension specified as "distance between heads" shall be applied as follows on the various types of barrels in

use:

(a) When a barrel or subdivision thereof has two heads, the tolerance shall be applied to the distance between the inside surfaces of the heads and perpendicular to them.

(b) When a barrel or subdivision thereof has but one head and a croze ring or other means for the insertion of a head, such as an inside hoop, etc., at the opposite end, the tolerance shall be applied to the distance from the inside surface of the bottom head and perpendicular to it to the inside edge of the croze ring, or to a point where the inside surface of a head would come were such head inserted in the barrel.

(c) When a barrel or subdivision thereof has but one head and no croze ring or other means for the insertion of a head, such as an inside hoop, etc., at the opposite end, the tolerance shall be applied to the distance from the inside surface of the bottom head and perpendicular to it to a point 1 inches from the opposite end of the staves in the case of a barrel or a 3⁄44 barrel, and to a point 1 inch or 1⁄2 inch from the opposite end of the staves in the case of the 2 barrel and 3 barrel, respectively. When a barrel or subdivision thereof has been manufactured with but one head and no croze ring or other means for the insertion of a head at the opposite end, and it is desired to insert a second head, the croze ring shall be so cut that the inside edge shall not be more than 1% inches from the end of the staves in the case of a barrel or 34 barrel or not more than 1 inch or % inch from the end of the staves in the case of the 2 barrel and 3 barrel, respectively, or the other

means shall be so adjusted that the inside surface of the head when inserted shall not exceed these distances from the end of the staves.

§ 241.4 Application of tolerance for "diameter of head.”

(a) The tolerance established in this part for the dimension specified as "diameter of head" shall be applied to the diameter of the head over all, including the part which fits into the croze ring of the completed barrel.

(b) The tolerance established in this part for the dimension specified as "effective diameter of head" shall be applied as follows on the various types of barrels and subdivisions in use;

(1) When a barrel or subdivision thereof has two heads, the tolerance shall be applied to the mean of the average diameters from inside to inside of staves at the inner edges of the heads.

(2) When a barrel or subdivision thereof has but one head and a croze ring or other means for the insertion of a head at the opposite end, the tolerance shall be applied to the mean of the average diameters, one taken from inside to inside of staves at the inner edge of the head, the other from inside to inside of staves at the inner edge of the croze ring, or from inside to inside of staves at a point where the inside surface of a head would come were such head inserted in the barrel.

(3) When a barrel or subdivision thereof has but one head and no croze ring or other means for the insertion of a head at the opposite end, the tolerance shall be applied to the mean of the average diameters, one taken from inside to inside of staves at the inner edge of the head, the other taken from inside to inside of staves at a point 1% inches from the end of the staves in the case of a barrel or 3/4 barrel, or at a point 1 inch or % inch from the end of the staves in the case of a 2 barrel or 3 barrel, respectively.

(c) The standard allowance for depth of croze ring shall be 316 inch. Therefore, the standard "effective diameter of head" in the case of the standard barrel is 1634 inches and in the case of the standard cranberry barrel is 15% inches. § 241.5 Standard dimensions.

Whenever in the rules and regulations in this part the error on a dimension is mentioned, this error shall be determined