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ASTM E676-02(2019)
Standard Specification for Interchangeable Taper-Ground Joints
Přeložit název
NORMA vydána dne 1.1.2019
Informace o normě:
Označení normy: ASTM E676-02(2019)
Datum vydání normy: 1.1.2019
Kód zboží: NS-911038
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Kategorie - podobné normy:
Anotace textu normy ASTM E676-02(2019) :
This specification covers the required properties of only the ground surfaces of interchangeable taper-ground joints used in laboratory and industrial equipment in full-length, medium length, short length, and international length grindings. It includes information on the testing method for the products. After testing, samples should conform to the required quality of surface finish, taper, and leakage for the specific joint size designation.
Keywords:
ground, joints ,, ICS Number Code 71.040.20 (Laboratory ware and related apparatus)
Doplňující informace
| 1. Scope | ||||||||||||
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1.1 This specification covers designations, dimensions, and tolerances for only the ground surfaces of interchangeable taper-ground joints for laboratory and industrial equipment in full-length, medium-length, short-length, and international-length (ISO K-6 series) grindings. Note 1: The dimensions pertaining to full-length,
medium-length, and short-length joints, other than for the
tolerance on length of grind, were taken directly from the now
obsolete Commercial Standard CS 21.
Note 2: Tolerances on the diameters of the
international-length joints do not agree with those given in ISO
Recommendation R 383. These tolerances have been established to
agree with those of CS 21 in order to prevent the negative
projection (large end of inner joint being smaller than large end
of outer joint) permitted by ISO.
Note 3: Although glass is the most commonly used material for
ground joints, other materials may be used as specified.
Taper-ground joints constructed from glass should be of suitable
chemical and thermal properties in accordance with Specification
E438. Joints should be as
free as possible of visible defects and conform to Specification
E671.
1.2 The following precautionary caveat pertains only to the Test Method portion, Section 4, of this specification. 1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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| 2. Referenced Documents | ||||||||||||
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