NORMSERVIS s.r.o.

ASTM B749-20

Standard Specification for Lead and Lead Alloy Strip, Sheet, and Plate Products

NORMA vydána dne 1.10.2020

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Proč Redline?

Redline představuje rychlý a snadný způsob jak porovnat všechny změny mezi aktuální platnou normou a předchozí verzí.

Díky redline se okamžitě dozvíte o:

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Díky Redline již nebudete muset ztrácet čas zjišťováním, co se v nové normě změnilo. Redline Vám ušetří čas a zaručí, že se o změnách v normě dozvíte.

Cena

Pokud si zvolíte možnost "Platná norma + Redline", pak dostanete oba dokumenty! A co je nejlepší, cena Platné normy + Redline je pouze o něco málo vyšší než cena samostatné platné normy.

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The information about the standard:

Designation standards: ASTM B749-20
Publication date standards: 1.10.2020
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Kategorie: Technické normy ASTM

Annotation of standard text ASTM B749-20 :

This specification covers the standard requirements for lead and lead alloy strip, sheet, and plate products intended for use in chemical plants, sound attenuation, roofing, vibration dampening, flashing and weather stripping, waterproofing, and radiation shielding. The lead sheet, strip, or plate shall be manufactured by rolling or extruding the product from a lead work piece which may be prepared by conventional casting into a mold or by direct continuous casting. Chemical analysis shall be performed on the samples which shall be taken during pouring the casting prior to working or during subsequent processing, such as rolling or cutting. The material shall conform to the product analysis variation in the chemical composition specifications for antimony, arsenic, tin, copper, silver, bismuth, zinc, tellurium, nickel, iron, and lead. Tension and hardness tests shall also be conducted on the specimens which shall be taken in the direction of rolling from the material in the final condition of rolling and heat treatment or in the case of continuously cast sheet in the casting direction and as cast state. The lead products shall be uniform in quality and hardness, smooth, commercially straight and flat, and free of injurious imperfections such as pits, dents, scratches, laminations, grit, foreign matter, porosity, or waves that may affect the serviceability of material.


Keywords:
lead plate, lead sheet, lead strip, wrought lead,, ICS Number Code 77.150.60 (Lead, zinc and tin products)