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ASTM D6715-13
Standard Practice for Sampling and Preparation of Fresh or Salt-Preserved (Cured) Hides and Skins for Chemical and Physical Tests
Automaticky přeložený název:
Standardní praxe pro odběr vzorků a přípravu sladké nebo mořské zachovalý (tvrzená) kůže a kožky o chemických a fyzikálních testů
NORMA vydána dne 1.5.2013
Informace o normě:
Označení normy: ASTM D6715-13
Poznámka: NEPLATNÁ
Datum vydání normy: 1.5.2013
Kód zboží: NS-36254
Počet stran: 3
Přibližná hmotnost: 9 g (0.02 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Kategorie - podobné normy:
Anotace textu normy ASTM D6715-13 :
Keywords:
chemical tests, cured hides, de-haired hide, fresh hide, hair-on hide, lot, physical tests, preparation, salt-preservation, salted hides, sampling, unit, ICS Number Code 59.140.20 (Raw skins, hides and pelts)
Doplňující informace
| Significance and Use |
|
3.1 The sampling procedures described in this practice have been designed to ensure random sampling of salt-preserved hides and skins for physical and chemical tests. Fresh or salt-preserved hides are natural products and as such are subject to extensive variability. The physical and chemical properties vary considerably depending on location on that specific hide, side, or skin from which the test sample is taken. Random sampling of specimens from a predefined location and orientation minimizes test bias and variability. This practice defines these parameters. 3.2 In general, tests carried out upon fresh or salt-preserved hides require composite lot samples generated using the preparation methods described within this practice. Subsequent tests typically require those composite samples to be in two forms: 3.2.1 Expressed Hide Fluid—where residual hide fluid is pressed from cleaned individual hair-on or de-haired hide sample, then equal volumes of each extracted fluid are blended together to create the composite sample. 3.2.2 Hide Material
Sample—where equal quantities of cleaned hair-on or de-haired
hide material are blended together to create a representative
composite sample.
1.1 This practice covers the
sampling and preparation of fresh or salt-preserved (cured) hides
for physical and chemical tests. The hides or skins to be tested
are grouped into lots. Each lot is randomly sampled in such a
manner as to produce a representative sample of that lot. This lot
sample may be used to determine compliance of the lot with
applicable specification requirements, and on the basis of results,
the lot may be accepted or rejected in its entirety.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
Podobné normy:
1.7.1988
1.1.1978
1.1.1989
1.1.1990
1.1.1990
NEPLATNÁ
1.1.1990
Doporučujeme:
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