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KN95 Respirator Mask, 4 layers, Box of 50 -LP-KN95-001BOX50
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Harley N95 NIOSH Certified Particulate Respirator Mask, Folder Style 20/Box - L-188
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Lab Pro Mask KN95 (K-N95) Pack of 50 - LP-MASK2-K95 - 40% OFF
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Lab Pro 3ply Earloop Disposable Mask (Non-Surgical) (Box of 50) - 84% OFF
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Whether you're determining unknown substances or calibrating analytical instruments, you will need certified laboratory standard solutions. Here at Lab Pro, our standards aim to increase lab efficiency and help users achieve more accurate results. Browse through our standards selection ranging from water-soluble ammonium sulfamate to phenacetin powder.
If you need laboratory standards in bulk, don't hesitate to reach us at 888-4-LABPRO (888-452-2776). We also offer next-day service in California and same-day service for will-calls.
Chemicals & Reagents
Reference Standards
Nitrite Standard, 500 ppm NO?? (152.25 ppm N) - 5444.5-4
$66.46Nitrite Standard, 500 ppm NO?? (152.25 ppm N) - 5444.5-4Size:120 mL Glass amberCAS Number:7732-18-5,67-66-3,7632-00-0
Nitrite Nitrogen Standard, 1000 ppm N (3285 ppm NO??) - R5444900-120C
$54.85Nitrite Nitrogen Standard, 1000 ppm N (3285 ppm NO??) - R5444900-120CSize:120 mL Glass amberCAS Number:7732-18-5,7758-09-0
Nitrite Nitrogen Standard, 1000 ppm N (3285 ppm NO??) - R5444900-500C
$114.02Nitrite Nitrogen Standard, 1000 ppm N (3285 ppm NO??) - R5444900-500CSize:500 mL Glass amberCAS Number:7732-18-5,7758-09-0
Nitrite Standard, 1000 ppm NO?? (304.5 ppm N) - 5445-4
$70.71Nitrite Standard, 1000 ppm NO?? (304.5 ppm N) - 5445-4Size:120 mL Poly naturalCAS Number:7732-18-5,7632-00-0,67-66-3
Nitrite Standard, 1000 ppm NO?? (304.5 ppm N) - 5445-8
$135.48Nitrite Standard, 1000 ppm NO?? (304.5 ppm N) - 5445-8Size:250 mL Poly naturalCAS Number:7732-18-5,7632-00-0,67-66-3
Nitrite Standard, 1000 ppm NO?? (304.5 ppm N) - 5445-16
$141.50Nitrite Standard, 1000 ppm NO?? (304.5 ppm N) - 5445-16Size:500 mL Poly naturalCAS Number:7732-18-5,7632-00-0,67-66-3
Ammonia Nitrogen Standard, 10 ppm N (12.2 ppm NH?) - 5450-4
$38.26Ammonia Nitrogen Standard, 10 ppm N (12.2 ppm NH?) - 5450-4Size:120 mL Poly naturalCAS Number:7732-18-5,12125-02-9
Ammonia Nitrogen Standard, 10 ppm N (12.2 ppm NH?) - 5450-1
$255.09Ammonia Nitrogen Standard, 10 ppm N (12.2 ppm NH?) - 5450-1Size:4 L Poly naturalCAS Number:7732-18-5,12125-02-9
Ammonia Nitrogen Standard, 10 ppm N (12.2 ppm NH?) - 5450-16
$73.26Ammonia Nitrogen Standard, 10 ppm N (12.2 ppm NH?) - 5450-16Size:500 mL Poly naturalCAS Number:7732-18-5,12125-02-9
Ammonia Nitrogen Standard, 50 ppm N (60.8 ppm NH?) - 5452-1
$258.04Ammonia Nitrogen Standard, 50 ppm N (60.8 ppm NH?) - 5452-1Size:4 L Poly naturalCAS Number:7732-18-5,12125-02-9
Ammonia Nitrogen Standard, 100 ppm N (122 ppm NH?) - 5453-4
$42.30Ammonia Nitrogen Standard, 100 ppm N (122 ppm NH?) - 5453-4Size:120 mL Poly naturalCAS Number:7732-18-5,12125-02-9
Ammonia Nitrogen Standard, 100 ppm N (122 ppm NH?) - 5453-16
$73.47Ammonia Nitrogen Standard, 100 ppm N (122 ppm NH?) - 5453-16Size:500 mL Poly naturalCAS Number:7732-18-5,12125-02-9
Ammonia Nitrogen Standard, 500 ppm N (608 ppm NH?) - R5454000-500A
$105.28Ammonia Nitrogen Standard, 500 ppm N (608 ppm NH?) - R5454000-500ASize:500 mL Poly naturalCAS Number:7732-18-5,12125-02-9
Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH?) - 5455-4
$38.26Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH?) - 5455-4Size:120 mL Poly naturalCAS Number:7732-18-5,12125-02-9
Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH?) - 5455-32
$93.46Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH?) - 5455-32Size:1 L Poly naturalCAS Number:7732-18-5,12125-02-9
Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH?) - 5455-1
$244.51Ammonia Nitrogen Standard, 1000 ppm N (1216 ppm NH?) - 5455-1Size:4 L Poly naturalCAS Number:7732-18-5,12125-02-9
