Beryllium (Be) is a strong, light metal useful in electronics, aerospace, and for windows in radiation detection equipment. From a worker health perspective exposure to beryllium is linked to beryllium sensitization and Chronic Beryllium Disease (CBD), which is incurable, debilitating, and potentially fatal. The International Agency for Research on Cancer …

(a) Where beryllium is present in operational areas of DOE facilities, the responsible employer must conduct routine surface sampling to determine housekeeping conditions. Surfaces contaminated with beryllium dusts and waste must not exceed a removable contamination level of 3 µg/100 cm 2 during non-operational periods. This sampling …

1910.1024 (j) (1) (i) The employer must maintain all surfaces in beryllium work areas and regulated areas as free as practicable of beryllium and in accordance with the written …

(TWA) permissible exposure limit for beryllium (PEL) 0.2 µg/mis. 3 and the new short term exposure limit (STEL) over a 15-minute sampling period is 2.0 µg/m3. 1.1.2 Toxic …

Papers discuss the industrial uses of beryllium, the history of beryllium disease, occupational exposure monitoring, and standardization of sampling and analytical methods. Beryllium Exposure Measurement and Reference Materials—National and International Perspectives: global efforts and progress in beryllium occupational …

If you need testing/sampling and analysis for beryllium and assistance in OSHA Compliance discussed in this article call us at 973-366-4660 or email us at [email protected] for details and a free estimate.. Written by Robert E. Sheriff, MS, CIH, CSP, President March 28, 2020

This compilation represents the work of numerous authors at the Symposium on Beryllium Sampling and Analysis, April 21-22, Reno, Nevada. The symposium was sponsored by ASTM International Committee ...

Definitions.As used in this standard: Action level means a concentration of airborne beryllium of 0.1 micrograms per cubic meter of air (μg/m 3) calculated as an 8-hour time-weighted average (TWA). Airborne exposure and airborne exposure to beryllium mean the exposure to airborne beryllium that would occur if the employee were not using a …

Exposure Evaluation and Controls. Exposure to beryllium via inhalation of airborne beryllium or dermal contact with beryllium-containing dust, fume, mist or solutions can cause …

rescence intensity vs. beryllium concentration (ng/mL) in the stock standard. NOTE: To test a range of 0.05 µg to 4 µg of beryllium on the sampling media, beryllium stock standard solutions are made up using beryllium spectrometric standards diluted with the ammonium bifluoride dissolution solution.

Standard Methods for Beryllium Sampling and Analysis: Availabilities and Needs 3. ABSTRACT: Conformity in methods for sampling and analysis of beryllium in workplace air and on. surfaces is ...

Future trends, including development of real-time beryllium sampling and analysis equipment, are also explored. Readers will gain an understanding of sampling and analytical techniques best suited for sensitive and accurate analysis of beryllium at ultra-trace levels in environmental and workplace samples. Many "standard" sampling and …

17.1.1 Transfer a 0.50-g sample, weighed to the nearest 0.1 mg, to a 250-mL beaker (Note 2). Add 100 mL of water and, in small increments, add 15 mL of H2SO4(1 + 1). When apparent reaction has ceased, warm until all action stops. NOTE 2—If the chromium content of the sample is between 0.02 and 0.04 %, use a 0.25-g sample.

tantalum oncentrate sampling. oncentrate sampling saudi arabia for. tantalum oncentrate sampling. Upgrading Tantalum Concentrates. Quantities of sample A were sized by screening at -1180 +589, -589 +300, -300 +147, and -147 µm.

Occurrence, properties, and uses. Beryllium is a steel-gray metal that is quite brittle at room temperature, and its chemical properties somewhat resemble those of aluminum.It does not occur free in nature. Beryllium is found in beryl and emerald, minerals that were known to the ancient Egyptians.Although it had long been suspected that the …

The primary goal of this study is to compare wet versus dry sampling methods for three different media, (Whatman 41 filter papers, GhostWipes, and SKC Smear Tabs), These media were selected because they are the most commonly used means for the collection of beryllium from contaminated surfaces withi …

A 11.9 g sample of beryllium at 96.7°C is placed into 28.5 mL of water at 20.2°C in an insulated container. The temperature of the water at thermal equilibrium is 32.0°C. What is the specific heat of beryllium? Assume a density of 1.00 g/mL for water. J/(g·°C)

This chapter describes the theory and technology for sampling aerosols in general and beryllium aerosols in particular, with sufficient background and discussion to allow the user to select with confidence from the available options the tools and techniques most applicable to the desired outcome. It must be kept in mind that an air sample is ...

Tables 1 and 2 show the relationships between beryllium air sampling rates, amount of volume collected, and the resulting lab detection limit. ISO 20581 and best practices set the detection limit for the analytical …

8. Collect a breathing zone sample on the electrical worker(s) if feasible. If electrical hazards (or other concerns) make breathing zone sampling infeasible, area sampling should be conducted instead. 4.2 Sampling of Electric Equipment Other Than Relay Cabinets during Scheduled Preventative Maintenance Actionee Step Action Line …

Standardized surface dust sampling methods for metals, with emphasis on beryllium J Occup Environ Hyg . 2009 Dec;6(12):D97-100. doi: 10.1080/15459620903022597.

beryllium, beryllium alloys and beryllium composites. For over 80 years we have been at the forefront of ... as determined over a sampling period of 15 minutes. Note: If an 8-hour TWA exposure is less than 0.06 µg/m. 3, it is unlikely the STEL of 2.0 µg/m. 3. was exceeded over any 15-minute duration the shift the TWA represents.

Dry wipe sampling. ASTM D7296, Standard Practice for Collection of Settled Dust Samples using Dry Wipe Sampling Methods for Subsequent Determination of Beryllium and Compounds. Use only if wet wipe sampling or vacuum sampling inappropriate. [Also …

Beryllium is a lightweight but extremely strong metal used in the aerospace, electronics, energy, telecommunications, medical, and defense industries. ... and 2.0 μg/m 3 as determined over a sampling period of 15 minutes. The PELs are the same for all employers covered by the standards (general industry, construction, and shipyards). The new 8 ...

Accurate surface sampling depends on comprehensive and precise pre-planning that quantifies what will be accomplished, when it is to be done, how it is to. Skip to Main Content. ... G. L. Rondeau, in Beryllium: Environmental Analysis and Monitoring, ed. M. J. Brisson and A. A. Ekechukwu, The Royal Society of Chemistry, 2009, ch. 3, pp. 68 …

Beryllium: Sampling and Analysis. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2006.

rescence intensity vs. beryllium concentration (ng/mL) in the stock standard. NOTE: To test a range of 0.05 µg to 4 µg of beryllium on the sampling media, beryllium stock standard solutions are made up using beryllium spectrometric standards diluted with the ammonium bifluoride dissolution solution.

Three sampling methods for airborne beryllium are compared to validate observations made in a 1973 National Institute for Occupational Safety and Health (NIOSH) industrywide study of the beryllium industry which indicated that, in general, the three methods yielded different results for samples take …

Sampling group: Sampler/Sampling media: Mixed cellulose ester filter (MCEF) 0.8 micron (37 mm) and filter spacer with Na₂CO₃ impregnated backup pad, in a 3-piece cassette [SKC 225-9001] ... Occupational Safety and Health Guideline for Beryllium and Its Compounds. 1988. NTP Report on Carcinogens 12th Edition Beryllium and …

The BeLPT is a laboratory blood test that examines how a type of disease-fighting blood cells that are normally found in the body, called lymphocytes, reacts to beryllium. In general terms, the BeLPT is performed by …