CELLULOSE INSULATION MW: 00.00
(C6 H10 O5 )n
METHOD: 7404, Issue 1
7404
CAS: 9004-34-6
RTECS: FJ5691460
EVALUATION: PARTIAL
Issue 1: 15 March 2003
PROPERTIES: solid
SYNONYMS: cellulosic fiber loose fill thermal insulation. Cocoon. SAMPLING
MEASUREMENT TECHNIQUE:
MICROSCOPY, SCANNING ELECTRON (SEM)
ANALYTE:
Fibers, (manual count)
SAMPLER:
FILTER (0.45- to 1.2-um polycarbonate membrane, 25-mm; conductive cowl on cassette)
FLOW RATE:
1 L/min
VOL-MIN: -MAX:
N/A
SAMPLE PREPARATION:
SHIPMENT:
Routine (pack to reduce shock)
EQUIPMENT:
Scanning electron microscope
SAMPLE STABILITY:
CALIBRATION:
SEM performance standard
Stable RANGE:
Not determined
BLANKS:
2 or 10% field blanks per set ACCURACY
RANGE STUDIED:
Not determined
BIAS:
Not determined
OVERALL PRECISION:
Not determined
ACCURACY:
Not determined
Colloidal graphite paint/carbon disk planchet.
ESTIMATED LOD: 1 confirmed cellulose fiber above 95% of expected mean blank value PRECISION:
Not determined
APPLICABILITY: This method is useful for the quantitative determination of airborne cellulose fibers during isulation installation [1].
INTERFERENCES: Non-fibrous cellulose. Very large cellulose fibers and cellulose fibers with convoluted shapes might interfere with fibers characterization. Other fiber types are typically rare and then only in trace amounts.
OTHER METHODS: The counting rules in this method were derived from Method 7400.
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition
