比16种多环芳烃 多了2个组分，如下：

1-methylnaphthalene 1-甲基萘 90-12-0 2000 +/- 100 mg/L
2-methylnaphthalene  2-甲基萘 91-57-6 2000 +/- 100 mg/L
 
组分信息：
benzo[k]fluoranthene 苯并(k)荧蒽 207-08-9 2000 +/- 100 mg/L
1-methylnaphthalene 1-甲基萘 90-12-0 2000 +/- 100 mg/L
2-methylnaphthalene  2-甲基萘 91-57-6 2000 +/- 100 mg/L
acenaphthene 苊 83-32-9 2000 +/- 100 mg/L
acenaphthylene 苊烯 208-96-8 2000 +/- 100 mg/L
anthracene 蒽 120-12-7 2000 +/- 100 mg/L
fluorene 芴 86-73-7 2000 +/- 100 mg/L
naphthalene 精萘 91-20-3 2000 +/- 100 mg/L
phenanthrene 菲 85-01-8 2000 +/- 100 mg/L
benzo[a]anthracene 1,2-苯并蒽 56-55-3 2000 +/- 100 mg/L
benzo[a]pyrene 苯并芘 50-32-8 2000 +/- 100 mg/L
chrysene 屈 218-01-9 2000 +/- 100 mg/L
fluoranthene 荧蒽 206-44-0 2000 +/- 100 mg/L
indeno[1,2,3-cd]pyrene 茚并(1,2,3-cd)芘 193-39-5 2000 +/- 100 mg/L
pyrene 芘 129-00-0 2000 +/- 100 mg/L
benzo[b]fluoranthene 苯并(b)荧蒽 205-99-2 2000 +/- 100 mg/L
benzo[ghi]perylene 1,12-苯并芘 191-24-2 2000 +/- 100 mg/L
dibenz[a,h]anthracene 二苯蒽 53-70-3 2000 +/- 100 mg/L