Tobacco. Determination of tobacco specific nitrosamines. Method using buffer extraction algolia-search-ignore If the slump continues to

If the slump continues to change over a period of 1 min after de-moulding

— minimum cabling requirements for the installation of new cabling

Some insurers also require BS 7858 as a part of the policy conditions and have additional requirements for screening

Companies dealing with roof waterproofing construction

Tobacco. Determination of tobacco specific nitrosamines. Method using buffer extraction algolia-search-ignore If the slump continues to1 Scope This International Standard specifies the procedure for the determination of the tobacco specific nitrosamines (TSNAs): N nitrosonornicotine (NNN), N nitrosoanatabine (NAT), N nitrosoanabasine (NAB) and 4 (methylnitrosamino) 1 (3 pyridyl) 1 butanone (NNK) in ground leaf tobacco, manufactured tobacco and tobacco products. The determination is by means of gas chromatography.